I'm impressed. Looks great and can be very playable on very outdated hardware. I imagine this has to do with scheduler. Seeing as this was optimized for modern consoles, it'd likely perform better if all threads were running in parallel (like on a FX, Ryzen, or non-HT Intel CPU). If the scheduler was using the HT'd threads, that's slowing the game down since the parent thread is out-of-sync. This is why HT was known to hurt performance of games about 10 years ago. The only reason that hasn't remained especially relevant lately is because most games for the longest time were only optimized for Intel. This game could possibly be the first change in that. I'm sure if this were tested on a 3700X or an 10980XE with HT off, there would be no performance difference between core quantity, until you reach 8 total threads.