Jump a lot? lags you mean? That's normal on CSO, since the file has been compressed, to solve it, decompress it back to ISO.

Well, actually the first post is more into CFW question, while this specifically about CSO, although lastly he did mention about how to run games, but the problem was solved.
and I don't see why the other thread should be deleted, since this one is more specific about something he wanted to know.

So, yeah.