Physx CPU

Why is this showing in the top left corner all of the sudden for me? Also I have physx set to gpu in nvidia control panel...
0_1537114768460_physx cpu.png

It is showing since you've manually enabled this to display in your Nvidia Control Panel. Our game uses CPU PhysX for vehicles, your settings in control panel is just a preferred device but it falls back to CPU if the game does not support GPU PhysX.