In the VR Template - MotionControllerMap, the VRPawn is derived from Pawn, not from DefaultPawn, so it doesn’t have a Motion Component by default. Add Movement Input doesn’t work in this case, unless you implemented something in your Event Tick.
If you start from the VR Template, in the MotionControllerMap, add the following to the Event Graph of the Pawn to implement Thumbstick based movements (you can similarly add a rotation using the X axis of the Right Thumbstick).
To make the movement faster, you can multiply the output of the Motion Controller axis by a float > 1.0. To make the rate of movement independent from the FPS, you can multiply it by Get World Delta Seconds.
Hope this helps!
Cheers,
Marco.