The framerate on the standard PS4 is apparently not the best, which, in small regard can be excused by the sheer force of enemies you're fighting on screen at once, but my experience on the PS4 Pro was inexcusable. (quillstreak.com)
From a gameplay perspective, it made sense as it allowed players to quickly identify what type of enemy they were fighting and what style they utilized. (gamercrash.com)