It's mainly speed. I don't know if it's fixed now. Previously when I was using VSCode, sometimes the "go to definition" hangs and it will freeze the whole edit

It's mainly speed. I don't know if it's fixed now. Previously when I was using VSCode, sometimes the "go to definition" hangs and it will freeze the whole editor, which was unacceptable. So in Lapce, nothing blocks the main thread other than your key press.