in theory I agree with this, the problem is just that Emacs very often shows its age. On large codebases the performance of completion frameworks is for me often abysmal, language server connections sometimes give in without discernible reason and I need to restart. A lot of things that should be done asynchronously aren't and so the UI locks up.

As a long term Emacs user I find myself going for VSCode a lot these days just because of how smooth it is and how well done the integration of major plugins is.