The guy said the game is CPU-bound and both PS4 and ONE have the same CPU, so that is the main reason, however you want to spin it. Beside if the game it's well optimized the performance on the 2 consoles it's really close. The problem is that the PS4 was marketed as a 1080p@60fps platform and that is impossible for most game. Both consoles are underpowered with respect to the current PC standars.