> neovim

I have to turn off my config (-u NONE) for large files (e.g., multi-GB JSON files), or everything slows to a crawl. I never profiled it to know what's causing the slowdown. It might be treesitter.

syntax hi-lighting is the usual culprit in regular vim when pasting or piping a big blob of json i’ve found

Yeah but then you have to use Vim-style editing which I hate.