Yes, you have way higher diff settings, very high rebound at the rear, and low ARB in comparison.
Edit:
Did a 1.15:2xx with yours. I think you have too high rear rebound (13), that's why you spun comming out of the last corner in the race - the rear damper applied too much rebound force and flipped the car to the right.
I lowered it to 12, and the car was more stable.
Your settup features very high positive rake (= front is lower than rear) and soft springs front and stiff ones at the back - also 1° more camber at the front than rear. All these cause the car to oversteer heavily, that's why you increased the rear wing and diff coast so much to counteract.
As you've seen on mine, the height is almost the same, spings are the same and the degrees of camber are close to one another. This gives the car a lot of balance and I don't need to increase the diffs and the rear wing so much.