Thats because it was faked, the story about Youseff posting up footage from his beta copy and betraying Oleg and Luthier was fictional in order to show the game running superb, the whole deception worked very well and there was much rejoicing on this forum, I was one of only a few who saw through it. Obviously when the game was released the community soom realised that the performance in the 'leaked' beta could not be achieved.