This is an accurate assessment.He has a GPU that is roughly 2-2.5x the raw power of the PS4 GPU. He's running the game at a resolution that is roughly 45% higher than the PS4 1080p vs 900p), at double the framerate and at higher visual settings. The game's performance seems absolutely fine to me.
Edit: Heh, beaten like a chump!
People are free to have an issue with this game's performance on all platforms, but the PC version seems perfectly fine relative to the others.