For everyone who do not know what low overhead mode is (incl myself); It is described as increasing performance by doing “less driver validation”. This could allow VR developers to squeeze out extra performance on Oculus Quest, Oculus Go, and the Samsung Gear VR.
Thanks I confirmed it doesn't appear in 2019.1's XR Settings, it must only appear in 2019.2 then.
It's mentioned in the Oculus Integration 1.41 release notes so expected it would apply to previous versions of Unity
Added support for “Low Overhead Mode” in Player Settings for Android applications. Applications that use OpenGL ES can build release apks that will will skip error checking and improve performance of the app.
hey Weitin, "Low Overhead mode" is a cpu optimization, which makes graphic driver less taxing. For example, it saves drawcall submission cost on CPU, results a better render thread performance, but no impact on GPU