Slow performance when "+[p

[ColinKennedy]

When I use [p, it is fast. But if I get from the "+ register, [p and ]p are slow.

OS: Windows 10
Terminal: Wezterm
Shell: WSL (Ubuntu 20.02)
Neovim version:

:version
NVIM v0.10.0-dev-2791+g99b3a068d
Build type: RelWithDebInfo
LuaJIT 2.1.1710088188

nvim -u reproduction.lua

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath, })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  -- Adds pair mappings (like ]l [l) to Vim
  {
      "tpope/vim-unimpaired",
      version = "2.*",
  },
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})


vim.cmd[[set laststatus=3]]

• Open Neovim
• Make a line with any text
• "+yy to copy it
• Paste it with "+[p

If you copy it to a different register and paste, it's normal speed (fast)

I did a profile file * | profile func * and 0.5 seconds are devoted to this chunk of code

FUNCTION  <SNR>69_putline()
    Defined: ~/repositories/personal/.config/nvim/bundle/vim-unimpaired/plugin/unimpaired.vim:408
Called 1 time
Total time:   0.568220
 Self time:   0.567142

count  total (s)   self (s)
    1              0.376446   let [body, type] = [getreg(v:register), getregtype(v:register)]
    1              0.000007   if type ==# 'V'
    1   0.191621   0.190604     exe 'normal! "'.v:register.a:how
                              else
                                call setreg(v:register, body, 'l')
                                exe 'normal! "'.v:register.a:how
                                call setreg(v:register, body, type)
    1              0.000002   endif
    1   0.000111   0.000050   silent! call repeat#set("\<Plug>(unimpaired-put-".a:map.")")

[justinmk]

Nvim clipboard performance (the "+ register) depends on how you have defined g:clipboard. It's common for that to involve powershell in WSL.

[ColinKennedy]

I'm using Wezterm + cmd, should I switch to a different terminal / shell?