There hasn't been a peep I've heard about Bryson playing slow this week. Watching tonight, he is still e-x-t-r-e-m-e-l-y deliberate but he doesn't waste any time getting off the green and on to the next tee.
ED: I just realized I haven't heard anything is because Bryson has been riding the pine (and partying in the stands) since session one all weekend.