Hiya wsy.  Gotta start off by saying that i don't have an iPAD running the game so all i can do is make best guesses...    

First off, have you updated to 
Version 1.2?
Also, you have any other apps running while you're playing?  This game is a memory hog!  Check out the developer's suggestions 
here.  And please post a follow up if that info is helpful to you.  (
it'd give other iPAD players the will to play on)    
