What Happened?
I loved this game app, and it has run smoothly on my iPod touch, 5th gen, from the beginning. Since they added a level/chapter, every part of the UI runs slow. Every animation, every game, including the original and new ones, runs slow. I hope the developers are listening, because new users will stop buying this game app, and existing users will stop playing and using in-game purchases.
BigM about
Icebreaker: A Viking Voyage