This is one of the games getting FSR3 at launch.
There is a problem on the PC version with motion vectors not working on the main character's hand for spell selection isn't working, hence the problems with FSR2.
But everywhere else FSR2 seems to be working pretty well. The motion vectors are working fine on the console versions, so we should expect this to be solved on the PC front quite soon, probably on time for the FSR3 patch which is cool.
I'm also guessing FSR3 will land on consoles, meaning the 45-60 FPS might turn into 80-120FPS.
These numbers are completely made up. No average numbers were mentioned nor shown in the video. The Series X and PS5 suffer from framerate drops from 60 to ~45 in intensive scenes with many enemies and spells, and the PS5 tends to go ~5-8FPS lower because it's apparently using a higher LOD bias.
Don Allen who wrote the PC technical review says otherwise, and any reasonable person will say otherwise. He even states FSR2 Quality offers higher detail than DLSS2 Quality and native. He says he doesn't recommend using FSR2 Performance, which is a long distance from claiming "it's absolute trash".
But of course this is the internet and some internet people think ridiculous hyperbole makes them look cool and intellectual, so here we are.