You turned on fluid motion frames which is driver level frame generation. This happens after everything is already rendered and is being sent to the monitor so you’ve (roughly) “doubled” your FPS but any FPS counters like the Steam one or third party overlays will still report the original FPS. Check the FPS in the steam overlay and then check what the AMD app is reporting, it won’t be the same.
Also because AFMF applies to the entire screen, you might get ghosting on UI elements like the crosshair. One benefit of the game having frame gen built in now is it can be make to ignore the UI (Mostly, lens effects still messed with it but it should be fixed now).
By the way, leave anti-lag off. That’s what causes the Psyker shield to turn into a rainbow mess you can’t see through. Yes that sounds like nonsense but anti-lag is supposed to throttle the CPU when GPU limited so I suspect it messes with loading assets somehow.
I’m also going to point everyone here to Vizra’s forum post where he was messing with the texture streaming settings buried in a config file and was able to improve his performance on AMD setups. It seems to help me to (even without turning SAM off like recommended) so I’m helping my less tech inclined friends change this stuff to test it too.