Frankly, I find it complete nonsense to be using an editor in a web browser on an interpreted language, but you know what? People said the same of emacs in the '80s and '90s…
In the 1990s most personal computers had 4-8 megabytes (1000x less than today) of RAM and could not run emacs without continuous swapping to disk. 當天emacs比vscode 糟多了.