UPDATED EDIT: Fanatec CSL Pedals Load Cell kit affects game performance

When playing with a controller, I've noticed that performance was much better than with my steering wheel. On the same stage at Sardegna, I hit up to 120 fps max with a controller. On my separate wheel and pedals, I can only get up to 80 FPS.

The attached screenshots give proof -- one is with my wheel and pedal combo and another is simply with the controller.

Controllers used for this are the Thrustmaster T300RS and the Fanatec CSL Pedals w/ Load Cell Brake kit