I guess "lag" or "choppiness" is subjective...all I can say is that the G2 was really really fast and smooth. I am not experiencing the same on this device. I love everything about it except for the smoothness / lag / chop, or whatever you want to call it. I had a Galaxy Nexus and it had so much lag / chop that it was borderline awful. This is not that bad. But for the "Flagship" of flagship phones, it is, in my mind, unacceptable. I just got back from a store and the two demo phones had the same or worse choppy animations mine does. I don't know if replacing my device will solve anything. I have to decide what to do quick though. I have about one week left before I am SOL.