jdhao

@tgy Maybe you can change `timeoutlen` when you enter insert mode and update it when you leave insert mode. This way, you won't have to wait so long in insert...

@tgy I have written [a post](https://jdhao.github.io/2020/11/23/neovim_better_mapping_for_leaving_insert_mode/) on the second way. When I type `k`, I will check if it is preceded by `j`. If that is the case, erase `j`...

I also tried other plugins such as [vim-grammarous](https://github.com/rhysd/vim-grammarous). It works pretty fast for the same long text I posted. If I understand it correctly, vim-grammarous uses the client of languagetool...

When processing the same text, vim-grammarous shows the result in about 3-4 seconds. But for this plugin, I never get the result. Can you try the text posted and run...

Yeah, the Windows display scale is 100% and the screen resolution is set to `1920 x 1080`.

@jgehrig I think I can reproduce this issue now. It has something to do with the mouse wheel setting. + open nvim-qt with the following cofing (nvim-qt -- -u init.vim)...

I think they are similar if not the same issue. The solid cursor shape becomes hollow. When you scroll the mouse wheel, it produces the display artifacts.

I tried to change the display scale to 125%, 150% or 175%, but the issue still persists. The image below is captured using 125% scale. 

No, I change the scale in Windows 10 settings in `System --> Display --> Scale and layout`. Sorry, I can not build this from source. It is a work computer...

I think the default encoding should be UTF-8.