alt Hacker Newsnvm it's a bash script they only installs node using curl and sets paths and links. I don't yet find where it is sluggish.
What I recognise as problematic it's the support for Windows if you are using WSL, and because of this, I'm thinking of giving a try to mise. I work on a pure Linux dev box, but my team mates work on Windows 11 (some people are masochistic...) and this would help when they need to mess with the frontend code.
I can't recommend mise highly enough, it's so good at all of the things it does that within about a week of trying it out I started using it everywhere. A year later and I'm finding it absolutely indispensable.