Sometimes. Vanilla emacs is lightning fast, but it's also missing critical features for most people. If you want to use emacs as a an alternative to VSCode, or

Sometimes. Vanilla emacs is lightning fast, but it's also missing critical features for most people. If you want to use emacs as a an alternative to VSCode, or IDE in general, you'll find high quality plugins that will enable you to do so. But then you might experience slow downs. As emacs is single-threaded (people will come and tell me it's not anymore, I know, but in practice it still is) you'll feel any slow downs in those plugins. Emacs typing latency isn't great. It's a mixed bag really. It can be fast, it can be slow. It's still my favorite editor.