It probably depends on your hardware. I have an "older" (several years at least) Windows work laptop with iGPU that is quite sluggish with VS Code when hooked up to an external 4K display. However, it's snappy compared to Microsoft Teams in the same situation.
Meanwhile, my similar era MacBook with dGPU hooked up to the same screen is very snappy and I honestly would probably not be able to tell the difference in a blind test between VS Code and typing in a native text box (like the one here in Safari).
I'd consider myself pretty anal about latency -- I was never able to deal with Atom's, for example (disclaimer: I haven't tried it in years). I even dumped Wayland for X11 when I had a Linux desktop because of latency (triple buffering or something?) I couldn't get rid of.
Meanwhile, my similar era MacBook with dGPU hooked up to the same screen is very snappy and I honestly would probably not be able to tell the difference in a blind test between VS Code and typing in a native text box (like the one here in Safari).
I'd consider myself pretty anal about latency -- I was never able to deal with Atom's, for example (disclaimer: I haven't tried it in years). I even dumped Wayland for X11 when I had a Linux desktop because of latency (triple buffering or something?) I couldn't get rid of.
But VS Code is not bad.