I finally had a long day to tinker with the quest pro. DLSS + QVF is absolute magic. The trick is that even in quality mode, DLSS is quite aggressive but you can actually get your own "in between the presets" setting by just changing the resolution in openXR toolkit. I went with a slight 10% upscale (though 5% a was already noticeably better) and results are indistinguishable from rendering at native resolution but with a significant performance boost, 10-25% more frames across the board. The other tweak I made was to change the QVF focus window size, which for some reason is overriden from the 0.35 default to 0.5 only for oculus users. I have to say 0.35 is "almost ok" but you do see the eye tracking more than default. 0.4 is almost as good as default, but you get another 5-10% boost.