I've seen claims of decent speed improvements when using CachyOS, though I can't say I've ever hunted down solid confirmation. I'm a bit wary of the project because I would have to put a lot of trust in them since they're rebuilding everything themselves and could easily introduce malware somewhere in there. (But I've been scared of distros before only to have it pointed out to me that some very well respected people are involved, so I could be worrying for nothing here too)