12-04-2010, 02:54 AM
That's because you're limiting speed in those cases. The emulator won't use unnecessary processing power if you limit the speed but it should reach 90%+ if you turn off frame limiter, for example if you get 60fps with that 70% ingame then you should be getting ~85fps without the limit... unless you're hitting the win7 bug in which case it could be you're using too high resolution 