One answer may be that it’s not that slow for everyone. It could vary with the kind of computer you’re running it on, or what languages you’re using it for, or the size of the codebases.

I’ve seen people complain all the time about how slow VS Code is, and I haven’t really had that issue on an M1 Mac, at least not since some major perf work in VS Code a few years ago. And I know what a fast editor is — I’ve used Helix and minimally-configured Neovim for years.