You can configure motion controllers (including turning them off) on the motion cotroller page of the vorpX menu.
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If you don’t need/want head tracking, you can disable the ‘X-Box Gamepad Override’ option and set the headtracking sensitivity to 0. That will bring back the game’s native gamepad handling.
Has this changed since posting? I did these steps and my gamepad still acts like it’s a mouse and keyboard. Playing Red Dead 2.