I have a free Open world demo from the marketplace of a Poplar forest running on my 1050Ti only after changing VR optimization settings as per their online documentation. It was a bit of a read but in summary you need to make sure to configure your Engine/Rendering settings. You need to set three things
A) Forward Renderer - check forward shading
B) Antialising method select MSAA not TemporalAA
C) VR Instanced stereo must be checked
Under Engine/General settings make sure Smooth frame rate is unchecked. Set the minimum desired frame rate to 25 fps if you have a less powerful GPU.