When I played the game, i thought Fidelity mode looked sharper but honestly PS5 Pro mode was 99% there. the thing is fidelity mode is already close to 50 fps and might even hit 60 fps at times in smaller areas so i didnt see a big reason to switch to pssr, but honestly, this is the best pssr implementation out there next to demon souls so ignore all the nitpicking.
PSSR having a 3.5 ms cost is in line with my findings with tlou2. this whole 2ms nonsense was just the best case scenario. even dlss is not 2ms. maybe in some games, but these AI upscaling solutions definitely have a cost and a lot of it is probably due to the fact that some of the effects still have to run at 4k.
In my testing, the difference between the unlocked ps5 mode and pro mode was around 25%. definitely not a cpu limit because it can easily hit 120 fps in some of the smaller areas and most of tests were basically in an empty field or a corridor. DF's findings line up with what we've seen in other games with 30-35% more performance. again, 45% in the leaks was the best case scenario.
i honestly dont know how you can release a console thats just 30-35% more powerful. especially for $700 but maybe they looked at nvidia pricing and said to themselves, why the fuck not.