That's an interesting issue, I suppose we could record CPU usage over time (electron gives us that info), but I'll probably keep that investigation for after itch v25 is out, to see if it's still a problem.
Thanks for reporting though, it's good to keep an eye out as I, too, want the itch app to stay top quality :)
There's still a fair amount of activity going on over at the itch issue tracker: https://github.com/itchio/itch/issues - ideally we'd progressively move more and more to itch.io facilities so that having a GitHub account is not required!
I don't have anything in particular to ask you to do right now, but thanks for reaching out! We're nearing quite a big release, with lots of changes, so we want to finish that properly before we start looking again at various reports. I've also been looking at other issues like a half-dozen reports of folks who just aren't able to run the app due to bad antivirus interactions, those will probably be handled first!
