Bug in HillBilly animation from the survivor's side

Animator

When HillBilly starts a chainsaw and goes forward, his animation (the way he shakes this chainsaw and shakes his head), his animation speeds up several times and also speeds up when he runs with a chainsaw. If Billy stands still and starts the chainsaw, then his animation slows down several times and looks like he's in slowmotion.

All this happens when you look at HillBilly from the perspective of a survivor