MX304, Looking at your setup there are a couple of things I would recommend that would drastically improve on power steering. Not sure if you want more, but on power steering is how you get fast!

Try taking out the anti-squat. Go to double dot down on the C or single dot down. With this much anti-squat the rear of the car will want to rise off power and become unpredictable. It also creates a weird oscillation when transitioning from on to off and back again.

Also, try moving your hubs back. You have them all the way forward, and we don't typically recommend this. We are now running them all the way back or 1 mm from all the way. With the hubs all the way forward, extra weight is placed over the rear wheels, and it won't rotate properly on power. Also with the increased dog bone angle the car will be very rigid on power and want to squat when throttle is applied. Moving the hubs forward will give the rear more on power, forward drive and severely decrease on power steering.

Both of these changes will help immensely on rough tracks and just make the car easier to drive overall.