Sure, VSCode is a power hog and it's slow, but I make pretty good money so the cost of a more powerful development machine is trivial compared to the opportunity cost of doing all that research. Some years I really enjoy learning all about new ways to configure vim/nvim, but I recognize that it's really not an efficient use of my time, it's just been something I do more for fun.
For me a snappy editor experience, and vim in general, is about comfort, not optimizing for some theoretical top editing speed. I don't think I'd be a drastically worse programmer if I were forced to use windows notepad to edit code, I would just be more uncomfortable all the time.