Hi there,
Did you ever manage to get this working? From the documentation, I gather that in order to use dynamic resolution in VR you need to enable Temporal antialiasing and TAAU. However, after enabling those and starting the dynamic resolution the left and right eye screens in my Oculus become zoomed in and show different parts of the environment. I’ve fiddled around with the settings, but I haven’t managed to get it to change resolution to anything within the range I specified.