| Yes it's totally normal for almost every MMO or any game which overlays the main play screen with a UI of some kind to lose framerate with the UI on.
The other thing about the WoW vs EQ2 UI comparison is that far more people are at or close to such a framerate in WoW where even if they actually lost, say 10fps, they wouldn't notice because the human eye cannot detect past a certain refresh rate point anyway. I'm not sure whether that point is 30fps or 60fps or whatever but you get my point. If you're at 70fps and you lose 10fps you're not gonna notice hardly anything. Not so if you start out at 30fps. Don't put it all down to the slickness of the UI although that may play a noticeable part. | 