I'm on the old 64 gigabyte one. I've tried several configs, from native 800p with fsr performance or ultra performance to setting the game to 5xxp with a more lenient fsr factor in case that was eating up the frame times, but no luck.
In the hero training it's super smooth 60 but once more...
This still works, I figured it out today on accident as well. I can also see why they blocked it, I was completely useless. Haven't yet found settings that don't drop to the 20s in a match and the as a result aiming and fast paced gyro don't work all that well.