The game slow down when you pick up a lot of coins at once, what i can do? I use 4 frames default animation and 5 frames when character pick up coins, here is video trailer, some times when you pickup lot of coins at once the game is slowing down...
What device? It is normal if you have a lot of actions that the loading of the scene slows the game down. At least on older devices. I experienced this as well in Void Jumping for my bonus scenes with a lot of coins.