vscode is noticeably slow compared to sublime text or zed, even without any extension. You instantly notice it when switching files or typing things that trigger auto-completions.

In the end the feeling is drastically different. It weirdly makes for a more peaceful experience to have such a snappy editor.

vscode wins thanks to all its extensions, where basically every language is supported and most features you can think of are there. But it's kinda like modern react. You know better alternatives exist, like solid or svelte, but the community is so big, it stays the easier choice in the end.

I've never once experienced delayed input typing even with a lot of extensions

Latencies associated with typing and switching files are imperceptible on any laptop I've used with VSCode.