I'm having the same issue, too. I purchased the game about a week ago and have a single GTX 680/i7 2600k/8 GB RAM. I averaged well over 60+FPS in non battle scenes, sometimes even topping over 100+ when inside a room. Load up the game yesterday morning and install the patch. When I have a chat with a NPC, my frames just tank in the 30's. Save the game, frames jump back up to the 70's/80's. What's the deal?