So, in the ongoing shitstorm that is the Arkham Knight PC Port, I went back and rewatched the Nvidia Gameworks Video, and I noticed something.
Around the 24 second mark when Batman counters and hits the criminals, their grunts sound a little high pitched.
Nvidia sped up the fucking gameplay demo to make it appear like it was running at 60 frames per second, and possibly to mask any further slowdown or issues.







