It "performs well" in the sense that I as a human enjoy it smoothly, but it does make my modern laptop's fan spin up quite loudly; and I don't know (I could be wrong!) that it renders graphics that is effectively fundamentally more complex than the ones I enjoyed on Amiga 500 and x286?

This is not in any way to reduce its awesomeness; I just lost 15 minutes I don't have scrolling around and will return to it this weekend! But I wouldn't say it had great performance.

edit: Unless you meant "Stellar Performance" in the artistic sense, i.e. "The figure skater put up a great performance today", in which case wholeheartedly agree :-)