Slower than VS Code?? I guess it's just poorly optimized for Linux. On MacOS, I find it to be significantly faster than VS Code, and the only alternative I've found that's in the ballpark of Sublime (from the performance aspect).

I'm on Linux and performance is the reason I switched from VSCode to Zed. It works great for me.

Perhaps the same issue that had Zed fail to recognize their GPU also tanked their performance.