Gear VR appears Choppy when add Widget components to the scene

Gear VR appears Choppy when add Widget components to the scene (this issue was not present in earlier version of the engine in the same project (4.16 appears to be a regression for 4.17))

Note: The 4.16 version was included as well for a comparison.

1. Download the attached project
2. Open project
3. Launch on to Gear VR compatible device (Note 4 used during test)
4. Look around

Result: The view appears choppy when looking left to right (this issue was not present in earlier version of the engine in the same project)
Expected: The view would be smooth when looking left to right