Rebound and compression on the rear shocks is to loose. Throws the housing out and bounces it back. It's hitting the tire pretty hard so my bet is slowing the the housing down with tighter rebound won't hurt anything. Once the rebound is under control it may not take much more compression to keep the housing/tire down on the track. How much air pressure? Might like more tire psi as well. What does the car weigh?
Doug