Probably is the league to be different and we can note the differences, but the Ozil which I have seen in Germany and at Madrid (I have seen him live) is different than the player which we are seeing in London.
He plays under rhythm every game. I'm not talking of the stupidity about his desire or capacity to help the team to recover the ball, but about his style.
He is like a COD player into the stealth mode. He plays on toes and the heels aren't ever on the pitch.
I never seen this player in England:
I have seen a great player sometimes, but I never seen the Mesut which I have seen in Spain, never.