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yatli / fvim

Cross platform Neovim front-end UI, built with F# + Avalonia
MIT License
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Completion (window?) causes lag #160

Closed hnry closed 3 years ago

hnry commented 4 years ago

Notice fvim struggles to keep up with typing, it gets so bad I even lose input (ex: if I type abcdef, I'll get adef sometimes).

I realize the problem it has to do with completion (using coc.vim). I don't think it has to do with completion itself, but the pop up. Every time I get completion and the pop up window shows it'll begin to lag.

Windows 10, Nvim 0.4.4, latest fvim master (but experiences this in previous builds), no wsl.

No issues using nvim in cmd, windows-terminal, with same vim config & setup. Just happens in fvim.

hnry commented 4 years ago

~I fixed it by suggest.maxCompleteItemCount: 10, default is 50 (coc.vim setting, limits completion suggestions). Either it doesn't like drawing that many items on the drop down list or ? I don't know. No problems with default in a terminal.~ Actually it just reduces the lag, doesn't actually fix it. Still lose input sometimes.

But here is another issue, the description window falls behind the dropdown so it is difficult to read. Expected: Properly size the window and place it left or right of the dropdown. This is what I'm use to when using nvim with terminal.

Screenshot (94)

hnry commented 4 years ago

FVimUIPopupMenu v:false fixes issue with lag and overlapping

yatli commented 4 years ago

Hi @hnry, thanks for reporting. I'm reopening this because FVimUIPopupMenu is still flawed.

The overlap problem is fixed upstream, here: https://github.com/neovim/neovim/pull/11943

The lag problem is related to the UI framework. I'll have to do some profiling to see how to improve the performance.

yatli commented 3 years ago

no lag issue for me for more than a year -- safe to close?