What are the minimum specs for the game?
If you are playing on iOS devices you should be able to run the game smoothly as long as your device is a class of iPhone 4S and higher. If you are playing on a device that meets these specifications the game should run without any issues.
However as with any game you still may experience the occasional bug from time to time. :)
If you encounter something you feel may be a bug rather than a feature feel free drop us a line at firstname.lastname@example.org.
All feedback is always really helpful in making our games more awesome! ;)