@Suiseiseki No, I run JS (or more accurately TS but the difference is practically non-existence) on the Pi itself using Deno...
Not even browsing websites...
You're mistaking "stupid oversized piece of shit framework bloated with 1337666 things you don't need ran in a bloated webbrowser that does 1337666 extra things" with "JS"...
JS, in itself, isn't that taxing...