I've just tried 1964 v0.9.9, and his new "Auto frameskip/Auto CF Timming Adjust" Option, and it's really cool. I have low specs, and now my games are running at full speed (with some frames skipped, eh...). Pj64 never had a good frameskip system. And 1964 is Open-Source, like pj64.
I'm not good...