Hey all, only my second post. But here we go... When I was doing "Just the beginning" quest and made it to the second map in the Tesrekan cave, the movement, attack animation slowed down. It has only happened in that cave, and kept happening until the last map where Tesrekan was, and happened until I had gotten to the first map room. Then it was back to normal speed.
Have you tried disabling "High quality filters" in the "Preferences" menu? I've experienced the same in a couple areas where the map has a filter (darkened caves).