Updated all drivers, even bios. Temps are normal, disk usage is normal, ram and cpu usage is normal, nothing spikes. PSU brand is Ultra, 750 watts. I uninstalled, and reinstalled SSFIV, and it worked perfectly. I reinstalled Blades of Time, and both Blades of Time and SSFIV get choppy. And it's just those two games. Right now I uninstalled Blades of Time, reisntalled only SSFIV, and will ask Steam about it as well.