I had the same problem too with my games, especially the latest game titles untill I upgraded my graphic card. Currently am using the ATI Radeon™ HD 4600 Series. Smooth all the way with no lag.
I have had massive problems with games using that graphics card. just paid about £120 for a new graphics card and not having any problems with my gaming
i fixed it with a new card
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What FPS are you getting, it just might be typical for that that on high settings.
I too have had some game lag, however I know with scaling back and using lower settings I can get by.
I had an NVidia card, but have since upgraded. I do believe I had an other type of card put in, and with it I can do any game.