I am also on an iPad 2, which is very much minimum spec. I do suspect some memory leakage, as the speed (for me) gets progressively worse over time, but they are doing what they can to improve it. The frequent crashes *would* be a deal-breaker for me if they hadn't done such a good job on "Continue Game". On average, a crash costs me about 1 minute; I don't *want* to lose that minute, but I've seen much worse.