When cutting the tree trunks in the opening area of the game, there is a slight hitch before it cuts in half and falls down. Having worked in Unity myself I thought maybe it would be because you are instantiating the two new halves of the tree or something from prefabs. If it is an intended delay then nevermind, but if not, you might look into memory pooling to avoid stuff like this (Unity isn't great about instantiating things)
I could be way off base on this and sorry if it sounds like I'm "telling you want to do", but *shrug* I like talking "shop" with people who use Unity.