I have alot of old windows 98 that played with fast frames in windows 7. too fast actually, that I have to use frame limiters to control the games.
in windows 8, its another story, same games, play at really slow frames. like my on an old computer again....
and the drivers and intel chipset drivers are up to date.
are rumors about other people having same problem.
its sad that I can run the same games in vmware and the play at very high framerates
I do have some games though had glitches in windows 7 but not in windows 8.