diff --git a/autoload/SpaceVim.vim b/autoload/SpaceVim.vim
index cdc551c33..488a50f3b 100644
--- a/autoload/SpaceVim.vim
+++ b/autoload/SpaceVim.vim
@@ -209,6 +209,14 @@ let g:spacevim_default_indent          = 2
 " In Insert mode: Use the appropriate number of spaces to insert a <Tab>
 let g:spacevim_expand_tab              = 1
 
+""
+" @section if_ruby, options-if_ruby
+" @parentsection options
+" Neovim if_ruby provider is too slow, If you are sure that your nvim does not
+" support ruby, set this option to false. default is true.
+
+let g:spacevim_if_ruby = 1
+
 ""
 " @section enable_list_mode, options-enable_list_mode
 " @parentsection options
@@ -1629,7 +1637,8 @@ endif
 command! -nargs=1 LeaderGuide call SpaceVim#mapping#guide#start_by_prefix('0', <args>)
 command! -range -nargs=1 LeaderGuideVisual call SpaceVim#mapping#guide#start_by_prefix('1', <args>)
 
-function! SpaceVim#end() abort
+function! s:lazy_end(...) abort
+  
   if g:spacevim_vimcompatible
     let g:spacevim_windows_leader = ''
     let g:spacevim_windows_smartclose = ''
@@ -1691,11 +1700,6 @@ function! SpaceVim#end() abort
   if !empty(g:spacevim_language)
     silent exec 'lan ' . g:spacevim_language
   endif
-
-  if SpaceVim#layers#isLoaded('core#statusline')
-    call SpaceVim#layers#core#statusline#init()
-  endif
-
   " tab options:
   set smarttab
   let &expandtab = g:spacevim_expand_tab
@@ -1728,13 +1732,49 @@ function! SpaceVim#end() abort
     vnoremap <silent> <leader> :<c-u>LeaderGuideVisual get(g:, 'mapleader', '\')<CR>
   endif
   let g:leaderGuide_max_size = 15
-  call SpaceVim#plugins#load()
-
   exe 'set wildignore+=' . g:spacevim_wildignore
   " shell
   if has('filterpipe')
     set noshelltemp
   endif
+
+endfunction
+
+function! SpaceVim#end() abort
+  let g:_spacevim_mappings_prefixs['[SPC]'] = {'name' : '+SPC prefix'}
+  let g:_spacevim_mappings_space.t = {'name' : '+Toggles'}
+  let g:_spacevim_mappings_space.t.h = {'name' : '+Toggles highlight'}
+  let g:_spacevim_mappings_space.t.m = {'name' : '+modeline'}
+  let g:_spacevim_mappings_space.T = {'name' : '+UI toggles/themes'}
+  let g:_spacevim_mappings_space.a = {'name' : '+Applications'}
+  let g:_spacevim_mappings_space.b = {'name' : '+Buffers'}
+  let g:_spacevim_mappings_space.f = {'name' : '+Files'}
+  let g:_spacevim_mappings_space.j = {'name' : '+Jump/Join/Split'}
+  let g:_spacevim_mappings_space.m = {'name' : '+Major-mode'}
+  let g:_spacevim_mappings_space.w = {'name' : '+Windows'}
+  let g:_spacevim_mappings_space.p = {'name' : '+Projects/Packages'}
+  let g:_spacevim_mappings_space.h = {'name' : '+Help'}
+  let g:_spacevim_mappings_space.n = {'name' : '+Narrow/Numbers'}
+  let g:_spacevim_mappings_space.q = {'name' : '+Quit'}
+  let g:_spacevim_mappings_space.l = {'name' : '+Language Specified'}
+  let g:_spacevim_mappings_space.s = {'name' : '+Searching/Symbol'}
+  let g:_spacevim_mappings_space.r = {'name' : '+Registers/rings/resume'}
+  let g:_spacevim_mappings_space.d = {'name' : '+Debug'}
+  let g:_spacevim_mappings_space.e = {'name' : '+Errors/Encoding'}
+  let g:_spacevim_mappings_space.B = {'name' : '+Global buffers'}
+  let &tabline = ' '
+  if has('timers')
+    call timer_start(300, function('s:lazy_end'))
+  else
+    call s:lazy_end()
+  endif
+
+  if SpaceVim#layers#isLoaded('core#statusline')
+    call SpaceVim#layers#core#statusline#init()
+  endif
+
+  call SpaceVim#plugins#load()
+
   if g:spacevim_enable_guicolors == 1
     if !has('nvim') && has('patch-7.4.1770')
       let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
@@ -1983,6 +2023,15 @@ function! SpaceVim#welcome() abort
   endif
   if g:spacevim_enable_vimfiler_welcome
         \ && get(g:, '_spacevim_checking_flag', 0) == 0
+        if has('timers')
+          call timer_start(500, function('s:open_filetree'))
+        else
+          call s:open_filetree()
+        endif
+  endif
+endfunction
+
+function! s:open_filetree(...) abort
     if exists(':VimFiler') == 2
       VimFiler
       wincmd p
@@ -2006,7 +2055,7 @@ function! SpaceVim#welcome() abort
     elseif exists(':Neotree') == 2
       NeoTreeShow
     endif
-  endif
+  
 endfunction
 
 ""
diff --git a/autoload/SpaceVim/custom.vim b/autoload/SpaceVim/custom.vim
index ea310aa98..e76275612 100644
--- a/autoload/SpaceVim/custom.vim
+++ b/autoload/SpaceVim/custom.vim
@@ -165,6 +165,9 @@ function! s:apply(config, type) abort
         elseif value ==# 'neo-tree' && !has('nvim')
           call SpaceVim#logger#warn('neo-tree requires neovim')
           continue
+        elseif value ==# 'nvim-tree' && !has('nvim')
+          call SpaceVim#logger#warn('nvim-tree requires neovim')
+          continue
         endif
         " keep backward compatibility
       elseif name ==# 'autocomplete_method'
diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index 0a582e557..72d5abcb3 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -140,6 +140,9 @@ function! SpaceVim#default#options() abort
   " Do not wrap lone lines
   set nowrap
 
+  " disable all bell
+  set belloff=all
+
   set foldtext=SpaceVim#default#Customfoldtext()
 
 endfunction
@@ -159,7 +162,7 @@ function! SpaceVim#default#layers() abort
   call SpaceVim#logger#info('layer list init done')
 endfunction
 
-function! SpaceVim#default#keyBindings() abort
+function! SpaceVim#default#keyBindings(...) abort
   call SpaceVim#logger#info('init default key bindings.')
   xnoremap <silent> <Leader>y :<C-u>call clipboard#yank()<cr>
   nnoremap <expr> <Leader>p clipboard#paste('p')
diff --git a/autoload/SpaceVim/layers/core.vim b/autoload/SpaceVim/layers/core.vim
index 027eb08bd..392f52a73 100644
--- a/autoload/SpaceVim/layers/core.vim
+++ b/autoload/SpaceVim/layers/core.vim
@@ -196,12 +196,12 @@ function! SpaceVim#layers#core#plugins() abort
           \ }])
     call add(plugins, [g:_spacevim_root_dir . 'bundle/vimproc.vim', {'build' : [(executable('gmake') ? 'gmake' : 'make')]}])
   elseif g:spacevim_filemanager ==# 'defx'
-    call add(plugins, [g:_spacevim_root_dir . 'bundle/defx.nvim',{'merged' : 0, 'loadconf' : 1 , 'loadconf_before' : 1, 'on_cmd' : 'Defx'}])
+    call add(plugins, [g:_spacevim_root_dir . 'bundle/defx.nvim',{'merged' : 0, 'loadconf' : 1, 'on_cmd' : 'Defx'}])
     call add(plugins, [g:_spacevim_root_dir . 'bundle/defx-git',{'merged' : 0, 'loadconf' : 1}])
     call add(plugins, [g:_spacevim_root_dir . 'bundle/defx-icons',{'merged' : 0}])
     call add(plugins, [g:_spacevim_root_dir . 'bundle/defx-sftp',{'merged' : 0}])
   elseif g:spacevim_filemanager ==# 'nvim-tree'
-    call add(plugins, [g:_spacevim_root_dir . 'bundle/nvim-tree.lua',{'merged' : 0, 'loadconf' : 1}])
+    call add(plugins, [g:_spacevim_root_dir . 'bundle/nvim-tree.lua',{'merged' : 0, 'loadconf' : 1, 'on_cmd' : ['NvimTreeOpen', 'NvimTree', 'NvimTreeToggle', 'NvimTreeFindFile']}])
     call add(plugins, [g:_spacevim_root_dir . 'bundle/nvim-web-devicons',{'merged' : 0, 'loadconf' : 1}])
   elseif g:spacevim_filemanager ==# 'neo-tree'
     call add(plugins, [g:_spacevim_root_dir . 'bundle/neo-tree.nvim',{'merged' : 0, 'loadconf' : 1}])
@@ -252,6 +252,12 @@ function! SpaceVim#layers#core#config() abort
 
   if g:spacevim_filemanager ==# 'nerdtree'
     noremap <silent> <F3> :NERDTreeToggle<CR>
+  elseif g:spacevim_filemanager ==# 'defx'
+    nnoremap <silent> <F3> :Defx<Cr>
+  elseif g:spacevim_filemanager ==# 'nvim-tree'
+    nnoremap <silent> <F3> <cmd>NvimTreeToggle<CR>
+  elseif g:spacevim_filemanager ==# 'neo-tree'
+    nnoremap <silent> <F3> <cmd>NeoTreeFocusToggle<CR>
   endif
   let g:matchup_matchparen_status_offscreen = 0
   let g:smoothie_no_default_mappings = !s:enable_smooth_scrolling
diff --git a/autoload/SpaceVim/layers/github.vim b/autoload/SpaceVim/layers/github.vim
index 0f0ce4c8b..8b4d91480 100644
--- a/autoload/SpaceVim/layers/github.vim
+++ b/autoload/SpaceVim/layers/github.vim
@@ -38,7 +38,7 @@ function! SpaceVim#layers#github#plugins() abort
         \ [g:_spacevim_root_dir . 'bundle/github-issues.vim', {'merged' : 0, 'if' : has('python')}],
         \ [g:_spacevim_root_dir . 'bundle/vim-github-dashboard', {
         \ 'merged' : 0,
-        \ 'if' : has('ruby'),
+        \ 'if' : g:spacevim_if_ruby && has('ruby'),
         \ 'on_cmd' : ['GHActivity', 'GHDashboard'],
         \ }],
         \ ['tyru/open-browser-github.vim',  {
@@ -82,7 +82,7 @@ function! SpaceVim#layers#github#config() abort
   endif
   "" }}}
 
-  if has('ruby')
+  if g:spacevim_if_ruby && has('ruby')
     " vim-github-dashboard requires if_ruby
     let g:github_dashboard = {
           \ 'username': g:spacevim_github_username,
diff --git a/autoload/SpaceVim/layers/zettelkasten.vim b/autoload/SpaceVim/layers/zettelkasten.vim
index 08235ddeb..106aa30c1 100644
--- a/autoload/SpaceVim/layers/zettelkasten.vim
+++ b/autoload/SpaceVim/layers/zettelkasten.vim
@@ -10,7 +10,7 @@ function! SpaceVim#layers#zettelkasten#plugins() abort
   let plugins = []
   call add(plugins, [g:_spacevim_root_dir . 'bundle/vim-zettelkasten',
         \ {
-          \ 'merged' : 0,
+          \ 'merged' : 0, 'on_cmd' : ['ZkNew', 'ZkBrowse', 'ZkListTemplete'], 'loadconf' : 1,
           \ }])
   return plugins
 endfunction
@@ -29,7 +29,7 @@ endfunction
 function! SpaceVim#layers#zettelkasten#config() abort
   let g:_spacevim_mappings_space.m.z = {'name' : '+zettelkasten'}
   call SpaceVim#mapping#space#def('nnoremap', ['m', 'z', 'n'], 'ZkNew', 'create-new-zettel-note', 1)
-  call SpaceVim#mapping#space#def('nnoremap', ['m', 'z', 't'], 'Telescope zettelkasten_template', 'zettel-template', 1)
+  call SpaceVim#mapping#space#def('nnoremap', ['m', 'z', 't'], 'ZkListTemplete', 'zettel-template', 1)
   call SpaceVim#mapping#space#def('nnoremap', ['m', 'z', 'b'], 'ZkBrowse', 'open-zettelkasten-browse', 1)
 endfunction
 
diff --git a/autoload/SpaceVim/mapping/space.vim b/autoload/SpaceVim/mapping/space.vim
index 1d516ed45..f270c3bee 100644
--- a/autoload/SpaceVim/mapping/space.vim
+++ b/autoload/SpaceVim/mapping/space.vim
@@ -14,25 +14,6 @@ let s:file = expand('<sfile>:~')
 let s:funcbeginline =  expand('<slnum>') + 1
 function! SpaceVim#mapping#space#init() abort
   call SpaceVim#logger#debug('init SPC key bindings')
-  let g:_spacevim_mappings_prefixs['[SPC]'] = {'name' : '+SPC prefix'}
-  let g:_spacevim_mappings_space.t = {'name' : '+Toggles'}
-  let g:_spacevim_mappings_space.t.h = {'name' : '+Toggles highlight'}
-  let g:_spacevim_mappings_space.t.m = {'name' : '+modeline'}
-  let g:_spacevim_mappings_space.T = {'name' : '+UI toggles/themes'}
-  let g:_spacevim_mappings_space.a = {'name' : '+Applications'}
-  let g:_spacevim_mappings_space.b = {'name' : '+Buffers'}
-  let g:_spacevim_mappings_space.f = {'name' : '+Files'}
-  let g:_spacevim_mappings_space.j = {'name' : '+Jump/Join/Split'}
-  let g:_spacevim_mappings_space.m = {'name' : '+Major-mode'}
-  let g:_spacevim_mappings_space.w = {'name' : '+Windows'}
-  let g:_spacevim_mappings_space.p = {'name' : '+Projects/Packages'}
-  let g:_spacevim_mappings_space.h = {'name' : '+Help'}
-  let g:_spacevim_mappings_space.n = {'name' : '+Narrow/Numbers'}
-  let g:_spacevim_mappings_space.q = {'name' : '+Quit'}
-  let g:_spacevim_mappings_space.l = {'name' : '+Language Specified'}
-  let g:_spacevim_mappings_space.s = {'name' : '+Searching/Symbol'}
-  let g:_spacevim_mappings_space.r = {'name' : '+Registers/rings/resume'}
-  let g:_spacevim_mappings_space.d = {'name' : '+Debug'}
   if s:has_map_to_spc()
     return
   endif
@@ -371,8 +352,6 @@ function! SpaceVim#mapping#space#init() abort
           \ ]
           \ , 1)
 
-  let g:_spacevim_mappings_space.e = {'name' : '+Errors/Encoding'}
-  let g:_spacevim_mappings_space.B = {'name' : '+Global buffers'}
   if g:spacevim_relativenumber
     nnoremap <silent> [SPC]tn  :<C-u>setlocal nonumber! norelativenumber!<CR>
     let g:_spacevim_mappings_space.t.n = ['setlocal nonumber! norelativenumber!', 'toggle-line-number']
diff --git a/autoload/SpaceVim/plugins.vim b/autoload/SpaceVim/plugins.vim
index e351ec29a..6117e3500 100644
--- a/autoload/SpaceVim/plugins.vim
+++ b/autoload/SpaceVim/plugins.vim
@@ -41,8 +41,12 @@ function! s:load_plugins() abort
         call SpaceVim#plugins#add(plugin[0], {'overwrite' : 1})
       endif
     endfor
-    call s:loadLayerConfig(layer)
   endfor
+  if has('timers')
+    call timer_start(500, function('s:layer_config_timer'), {'repeat' : 1})
+  else
+    call s:layer_config_timer(0)
+  endif
   unlet g:_spacevim_plugin_layer
   for plugin in g:spacevim_custom_plugins
     if len(plugin) == 2
@@ -63,6 +67,12 @@ function! s:getLayerPlugins(layer) abort
   return p
 endfunction
 
+function! s:layer_config_timer(t) abort
+  for layer in SpaceVim#layers#get()
+    call s:loadLayerConfig(layer)
+  endfor
+endfunction
+
 function! s:loadLayerConfig(layer) abort
   call SpaceVim#logger#debug('load ' . a:layer . ' layer config.')
   try
@@ -70,7 +80,6 @@ function! s:loadLayerConfig(layer) abort
   catch /^Vim\%((\a\+)\)\=:E117/
     call SpaceVim#logger#info(a:layer . ' layer do not implement config function')
   endtry
-
 endfunction
 
 let s:plugins_argv = ['-update', '-openurl']
diff --git a/bundle/git.vim/lua/git/command/branch.lua b/bundle/git.vim/lua/git/command/branch.lua
index 84686c947..d269d9f37 100644
--- a/bundle/git.vim/lua/git/command/branch.lua
+++ b/bundle/git.vim/lua/git/command/branch.lua
@@ -39,7 +39,7 @@ local function update_branch_name(pwd, ...)
   if
     force
     or vim.fn.get(vim.fn.get(branch_info, pwd, {}), 'last_update_done', 0)
-      >= vim.fn.localtime() - 1
+      <= vim.fn.localtime() - 1
   then
     local jobid = job.start(cmd, {
       on_stdout = on_stdout_show_branch,
diff --git a/bundle/vim-zettelkasten/plugin/zettelkasten.lua b/bundle/vim-zettelkasten/plugin/zettelkasten.lua
index 16de58f4a..922f61de0 100644
--- a/bundle/vim-zettelkasten/plugin/zettelkasten.lua
+++ b/bundle/vim-zettelkasten/plugin/zettelkasten.lua
@@ -13,6 +13,10 @@ if vim.fn.exists(":ZkBrowse") == 0 then
     vim.cmd([[command ZkBrowse :lua _G.zettelkasten.zkbrowse()]])
 end
 
+if vim.fn.exists(":ZkListTemplete") == 0 then
+    vim.cmd([[command ZkListTemplete :Telescope zettelkasten_template]])
+end
+
 _G.zettelkasten = {
     tagfunc = require("zettelkasten").tagfunc,
     completefunc = require("zettelkasten").completefunc,
diff --git a/config/plugins/neo-tree.vim b/config/plugins/neo-tree.vim
index aa588c7dd..97285ec43 100644
--- a/config/plugins/neo-tree.vim
+++ b/config/plugins/neo-tree.vim
@@ -1,5 +1,4 @@
 let s:WIN = SpaceVim#api#import('vim#window')
-nnoremap <silent> <F3> <cmd>NeoTreeFocusToggle<CR>
 augroup vfinit
   au!
   autocmd FileType neo-tree call s:nvim_tree_init()
diff --git a/config/plugins/nvim-tree.vim b/config/plugins/nvim-tree.vim
index 89597fa6b..3d738ff85 100644
--- a/config/plugins/nvim-tree.vim
+++ b/config/plugins/nvim-tree.vim
@@ -1,5 +1,4 @@
 let s:WIN = SpaceVim#api#import('vim#window')
-nnoremap <silent> <F3> <cmd>NvimTreeToggle<CR>
 " we can not use this option to disable default key bindings
 " let g:nvim_tree_disable_default_keybindings = 1
 augroup vfinit
diff --git a/config/plugins/telescope.nvim-0.1.8.vim b/config/plugins/telescope.nvim-0.1.8.vim
index 93c46d457..db5f46b92 100644
--- a/config/plugins/telescope.nvim-0.1.8.vim
+++ b/config/plugins/telescope.nvim-0.1.8.vim
@@ -5,9 +5,6 @@ lua require('telescope').load_extension('scriptnames')
 lua require('telescope').load_extension('neoyank')
 lua require('telescope').load_extension('task')
 lua require('telescope').load_extension('neomru')
-if SpaceVim#layers#isLoaded('zettelkasten')
-  lua require('telescope').load_extension('zettelkasten_template')
-endif
 if SpaceVim#layers#isLoaded('tools')
   lua require('telescope').load_extension('bookmarks')
 endif
diff --git a/config/plugins/vim-startify.vim b/config/plugins/vim-startify.vim
index 62aad6457..bb4ece64b 100644
--- a/config/plugins/vim-startify.vim
+++ b/config/plugins/vim-startify.vim
@@ -60,6 +60,10 @@ augroup END
 if !exists('g:startify_custom_header')
   call s:update_logo()
 endif
+
+if !has_key(g:_spacevim_mappings_space, 'a')
+  let g:_spacevim_mappings_space.a = {'name' : '+Applications'}
+endif
 call SpaceVim#mapping#space#def('nnoremap', ['a','s'], 'call SpaceVim#plugins#history#savepos() | Startify | doautocmd WinEnter', 'fancy start screen',1)
 
 if g:spacevim_enable_tabline_ft_icon || get(g:, 'spacevim_enable_tabline_filetype_icon', 0)
diff --git a/config/plugins/vim-zettelkasten.vim b/config/plugins/vim-zettelkasten.vim
new file mode 100644
index 000000000..53567d746
--- /dev/null
+++ b/config/plugins/vim-zettelkasten.vim
@@ -0,0 +1,3 @@
+if SpaceVim#layers#isLoaded('zettelkasten')
+  lua require('telescope').load_extension('zettelkasten_template')
+endif
diff --git a/config/plugins_before/defx.vim b/config/plugins_before/defx.vim
deleted file mode 100644
index 60eaf2269..000000000
--- a/config/plugins_before/defx.vim
+++ /dev/null
@@ -1,2 +0,0 @@
-nnoremap <silent> <F3> :Defx<Cr>
-
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index 84ff9fcbf..d0b9be0f4 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -58,44 +58,45 @@ CONTENTS                                                   *SpaceVim-contents*
     36. filetree_direction.............. |SpaceVim-options-filetree_direction|
     37. guifont.................................... |SpaceVim-options-guifont|
     38. home_files_number................ |SpaceVim-options-home_files_number|
-    39. info_symbol............................ |SpaceVim-options-info_symbol|
-    40. keep_server_alive................ |SpaceVim-options-keep_server_alive|
-    41. language.................................. |SpaceVim-options-language|
-    42. leader_guide_theme.............. |SpaceVim-options-leader_guide_theme|
-    43. lint_engine............................ |SpaceVim-options-lint_engine|
-    44. lint_on_the_fly.................... |SpaceVim-options-lint_on_the_fly|
-    45. max_column.............................. |SpaceVim-options-max_column|
-    46. plugin_bundle_dir................ |SpaceVim-options-plugin_bundle_dir|
-    47. plugin_manager_processes.. |SpaceVim-options-plugin_manager_processes|
-    48. project_auto_root................ |SpaceVim-options-project_auto_root|
-    49. project_non_root.................. |SpaceVim-options-project_non_root|
-    50. project_rooter_outermost.. |SpaceVim-options-project_rooter_outermost|
-    51. project_rooter_patterns.... |SpaceVim-options-project_rooter_patterns|
-    52. projects_cache_num.............. |SpaceVim-options-projects_cache_num|
-    53. realtime_leader_guide........ |SpaceVim-options-realtime_leader_guide|
-    54. relativenumber...................... |SpaceVim-options-relativenumber|
-    55. retry_cnt................................ |SpaceVim-options-retry_cnt|
-    56. search_tools.......................... |SpaceVim-options-search_tools|
-    57. sidebar_width........................ |SpaceVim-options-sidebar_width|
-    58. snippet_engine...................... |SpaceVim-options-snippet_engine|
-    59. src_root.................................. |SpaceVim-options-src_root|
-    60. statusline_iseparator........ |SpaceVim-options-statusline_iseparator|
-    61. statusline_left.................... |SpaceVim-options-statusline_left|
-    62. statusline_right.................. |SpaceVim-options-statusline_right|
-    63. statusline_separator.......... |SpaceVim-options-statusline_separator|
-    64. statusline_unicode.............. |SpaceVim-options-statusline_unicode|
-    65. terminal_cursor_shape........ |SpaceVim-options-terminal_cursor_shape|
-    66. todo_close_list......................... |SpaceVim-options-close_list|
-    67. todo_labels............................ |SpaceVim-options-todo_labels|
-    68. todo_prefix............................ |SpaceVim-options-todo_prefix|
-    69. vim_help_language................ |SpaceVim-options-vim_help_language|
-    70. vimcompatible........................ |SpaceVim-options-vimcompatible|
-    71. warning_symbol...................... |SpaceVim-options-warning_symbol|
-    72. wildignore.............................. |SpaceVim-options-wildignore|
-    73. windisk_encoding.................. |SpaceVim-options-windisk_encoding|
-    74. windows_index_type.............. |SpaceVim-options-windows_index_type|
-    75. windows_leader...................... |SpaceVim-options-windows_leader|
-    76. windows_smartclose.............. |SpaceVim-options-windows_smartclose|
+    39. if_ruby.................................... |SpaceVim-options-if_ruby|
+    40. info_symbol............................ |SpaceVim-options-info_symbol|
+    41. keep_server_alive................ |SpaceVim-options-keep_server_alive|
+    42. language.................................. |SpaceVim-options-language|
+    43. leader_guide_theme.............. |SpaceVim-options-leader_guide_theme|
+    44. lint_engine............................ |SpaceVim-options-lint_engine|
+    45. lint_on_the_fly.................... |SpaceVim-options-lint_on_the_fly|
+    46. max_column.............................. |SpaceVim-options-max_column|
+    47. plugin_bundle_dir................ |SpaceVim-options-plugin_bundle_dir|
+    48. plugin_manager_processes.. |SpaceVim-options-plugin_manager_processes|
+    49. project_auto_root................ |SpaceVim-options-project_auto_root|
+    50. project_non_root.................. |SpaceVim-options-project_non_root|
+    51. project_rooter_outermost.. |SpaceVim-options-project_rooter_outermost|
+    52. project_rooter_patterns.... |SpaceVim-options-project_rooter_patterns|
+    53. projects_cache_num.............. |SpaceVim-options-projects_cache_num|
+    54. realtime_leader_guide........ |SpaceVim-options-realtime_leader_guide|
+    55. relativenumber...................... |SpaceVim-options-relativenumber|
+    56. retry_cnt................................ |SpaceVim-options-retry_cnt|
+    57. search_tools.......................... |SpaceVim-options-search_tools|
+    58. sidebar_width........................ |SpaceVim-options-sidebar_width|
+    59. snippet_engine...................... |SpaceVim-options-snippet_engine|
+    60. src_root.................................. |SpaceVim-options-src_root|
+    61. statusline_iseparator........ |SpaceVim-options-statusline_iseparator|
+    62. statusline_left.................... |SpaceVim-options-statusline_left|
+    63. statusline_right.................. |SpaceVim-options-statusline_right|
+    64. statusline_separator.......... |SpaceVim-options-statusline_separator|
+    65. statusline_unicode.............. |SpaceVim-options-statusline_unicode|
+    66. terminal_cursor_shape........ |SpaceVim-options-terminal_cursor_shape|
+    67. todo_close_list......................... |SpaceVim-options-close_list|
+    68. todo_labels............................ |SpaceVim-options-todo_labels|
+    69. todo_prefix............................ |SpaceVim-options-todo_prefix|
+    70. vim_help_language................ |SpaceVim-options-vim_help_language|
+    71. vimcompatible........................ |SpaceVim-options-vimcompatible|
+    72. warning_symbol...................... |SpaceVim-options-warning_symbol|
+    73. wildignore.............................. |SpaceVim-options-wildignore|
+    74. windisk_encoding.................. |SpaceVim-options-windisk_encoding|
+    75. windows_index_type.............. |SpaceVim-options-windows_index_type|
+    76. windows_leader...................... |SpaceVim-options-windows_leader|
+    77. windows_smartclose.............. |SpaceVim-options-windows_smartclose|
 3. Configuration............................................ |SpaceVim-config|
 4. Commands............................................... |SpaceVim-commands|
 5. Public functions...................................... |SpaceVim-functions|
@@ -801,6 +802,12 @@ Change the list number of files for SpaceVim home. Default is 6.
   home_files_number = 6
 <
 
+==============================================================================
+IF_RUBY                                             *SpaceVim-options-if_ruby*
+
+Neovim if_ruby provider is too slow, If you are sure that your nvim does not
+support ruby, set this option to false. default is true.
+
 ==============================================================================
 INFO_SYMBOL                                     *SpaceVim-options-info_symbol*
 
diff --git a/init.vim b/init.vim
index 2f1a07615..2ac38f2e4 100644
--- a/init.vim
+++ b/init.vim
@@ -63,7 +63,12 @@ call SpaceVim#begin()
 
 call SpaceVim#custom#load()
 
-call SpaceVim#default#keyBindings()
+if has('timers')
+  call timer_start(300, 'SpaceVim#default#keyBindings') 
+else
+  call SpaceVim#default#keyBindings()
+endif
+
 
 call SpaceVim#end()
 
diff --git a/lua/spacevim/plugin/tabline.lua b/lua/spacevim/plugin/tabline.lua
index 56b66bdc3..0c0c9d6b9 100644
--- a/lua/spacevim/plugin/tabline.lua
+++ b/lua/spacevim/plugin/tabline.lua
@@ -320,6 +320,13 @@ function M.enable()
   isep = iseps[1]
   right_sep = seps[1]
   left_sep = seps[2]
+  for bufnr = 1, vim.fn.bufnr('$') do
+      if
+        vim.api.nvim_buf_is_valid(bufnr) and vim.api.nvim_buf_get_option(bufnr, 'buflisted')
+      then
+        table.insert(visiable_bufs, bufnr)
+      end
+  end
   local tabline_augroup = vim.api.nvim_create_augroup('spacevim_tabline', { clear = true })
   vim.api.nvim_create_autocmd({ 'BufNewFile', 'BufReadPost' }, {
     callback = vim.schedule_wrap(function(event)