Seems like anyone who has played with De Chambeau this season has totally capitulated. McIlroy, Reed, Schauffele, Thomas, Wolfe etc. The list is endless. Not only is it his slow play that gets them but the constant drone of his voice talking to his ball for hours on end. I think as well because of his distance players in same group end up trying to increase their own swing speed unwittingly to try and keep with him instead of playing their own game. Also it was to effect you psychologically when your opponent is 30/40 yards further down the fairway than you on most holes. You are better off in 2nd or 3rd last pairing if he is out in front.
He was younger than Federer, he just didn’t have the drive anymore because he didn’t have the game to compete with Federer, Nadal, Djokovic, Murray, Wawrinka, Del Potro etc