A general remark rather than an answer to your question: in general, more than not equal better with vitamins, and too much vitamin B6 can lead to nerve problems. I would only supplement when you have a good reason to believe that you’re deficient. If you insist, at least try to stick to normal doses.
Some features/plugins can be quite taxing on the system and in extreme cases it can slow the editor down to the point of being unusable. I’m a happy Neovim user with a LazyVim setup, but I experience this extreme slowdown for some JSON files and I haven’t looked into it yet to see what causes it.
You can let your editor do the same compute intensive or memory hogging things that a GUI editor does. The fact that it runs in your terminal doesn’t make it lightweight by definition.