I hear everyone talking about lag in animations, but my air lags in other, basic, parts as well... Scrolling through the App Store or even the system settings is not smooth sometimes. Pinch to zoom/scrolling in safari....It seems to come and go. should I be worried? Is this normal? Does 7.1 help these things? I just don't want to keep this unit if there is something wrong with it. Everything else seems fine.