`SPC f s` is too slow when defx is opened.
[.profile.log](https://github.com/SpaceVim/SpaceVim/files/11359147/default.profile.log)


```
FUNCTIONS SORTED ON SELF TIME
count  total (s)   self (s)  function
    1  12.300086  12.293576  defx#util#rpcrequest()
    2   0.021114   0.021020  192()
    1   0.019921   0.013208  <SNR>441_check_buffer()
    1   0.005139   0.005119  neoinclude#util#async_system()
    2              0.004769  SpaceVim#plugins#projectmanager#current_root()
    1              0.000980  <SNR>441_get_include_files()
    5              0.000913  context_filetype#filetypes()
   10   0.001569   0.000895  <SNR>324_get_context()
   29              0.000603  <SNR>122_truncate()
   10   0.000673   0.000576  <SNR>324_search_range()
    1   0.017984   0.000495  gtags#update()
   29   0.001097   0.000494  defx#util#truncate_skipping()
    1   0.001893   0.000484  neosnippet#helpers#get_snippets()
    1   0.000396   0.000359  <SNR>303_GetNearbyTag()
    1              0.000358  defx#util#call_atomic()
    1   0.000316   0.000309  deoplete#custom#_update_cache()
    2              0.000274  <SNR>324_get_same_filetypes()
    1   0.001631   0.000260  SpaceVim#layers#core#statusline#get()
    2              0.000257  33()
    2   0.000312   0.000255  <SNR>126_debug_log()

```


```
FUNCTION  defx#util#rpcrequest()
    Defined: ~\.SpaceVim\bundle\defx.nvim\autoload\defx\util.vim:219
Called 1 time
Total time:  12.300086
 Self time:  12.293576

count  total (s)   self (s)
    1   0.000007   0.000004   if !defx#init#_check_channel()
                                return -1
    1              0.000000   endif
                            
    1   0.000011   0.000004   if defx#util#has_yarp()
                                if g:defx#_yarp.job_is_dead
                                  return -1
                                endif
                                if a:is_async
                                  return g:defx#_yarp.notify(a:method, a:args)
                                else
                                  return g:defx#_yarp.request(a:method, a:args)
                                endif
    1              0.000000   else
    1              0.000001     if a:is_async
                                  return rpcnotify(g:defx#_channel_id, a:method, a:args)
    1              0.000000     else
    1  12.300055  12.293555       return rpcrequest(g:defx#_channel_id, a:method, a:args)
                                endif
                              endif
```