As of a couple updates ago (i'm not sure if this is a TPA or iOS problem, or both) I began noticing that TPA would hitch on frames, or drop them. This was around the time of R911. I thought it was just that table at first, but I've since noticed the issue on every table. Some have it worse than others. I finally made a thread about it because I just played a game of Theater of Magic that had some of the worst performance I've seen on iOS. Again, I'm using an iPad Air 2 on the latest firmware - performance should not be a problem. But this particular session experienced constant stutters. Quite frankly I am suprised I haven't seen more discussion about these iOS perfomance issues.