I switched _to_ VSCode because Sublime was occasionally so slow at times that it was unusable. It was very fast 95% of the time, but then I'd `git pull` on a very big repo and my machine would become unresponsive while Sublime did...something.
Every little while, I try to make vscode my main editor, because I enjoy all the features. I always switch back to Sublime just because VSCode's slowness bugs me.
Haven't really tried Zed in earnest yet, though, because of no custom LSP support.