No I do find the MacBook Air pretty snappy in general. It's just that I do feel an actual very noticeable snappiness difference between VSCode and Sublime/Zed; especially for switching between files within a project. I can still be productive in VSCode (in fact, I think it was the best text editor for a short time when they had the best syntax highlighting of the lighter-ish-text editors). But once LSP was integrated in Sublime, I switched back. Zed feels fast snappy for me, though. So I've been using that more.