Thank you for your feedback, music and sound are my next goal to fix, and the next update should have that improved. I am aware that due to random positioning that nuts, powerups, and mushrooms can spawn on the player. Adding a simple check the player's position is on the "things to do list".  The reason slows down is that the hampster food pouch fills up, however, the animations have not been added yet, as was still working on getting the run animations correct.

Thanks you for feedback, The music and sound should be fixed on the next update