"OpenComposite (previously known as OpenOVR - OpenVR for OculusVR - but renamed due to confusion with OpenVR) is an implementation of SteamVR’s API - OpenVR, forwarding calls directly to the Oculus runtime.
Think of it as a backwards version of ReVive, for the Rift. This allows you to play SteamVR-based games on an Oculus Rift as though they were native titles, without the use of SteamVR."
As pitool can play oculus games “natively” I wonder if this OpenComposite would work too with the pimax, removing the need for steamVR for steamVR games.
And if it works it may be worth checking if there is any performance gain !