Shougo

It seems LSP slowness. pylsp use jedi and it is slow. You can use pyright lsp instead.

> Is it possible to cache all the completion items from sub-packages from the start? I think pyright implements this feature, and it uses CPU usage. So it is trade...

Please see #808.

Why the feature is needed?

> My point is that we need to have a central place where users can _find_ all of these plugins. I think you can search plugins by https://github.com/topics/nvim-cmp. I don't...

> Not sure its off topic; You are talking about changing the core of cmp to make it more customizable, refactoring all of the views (for example) into external plugins....

> I think that cmp is a really amazing piece of code. Extensibility is also a key part of it. But I think success is starting to show its downsides,...

It seems configuration (mappings) problem...

> Expected: Page up/down should scroll items inside the completion popup. But you don't map the keys in your config.

Well... > c = cmp.config.disable, -- see GH-880 The mapping config is needed? As I know the default mappings are removed.