I don't think that he played particularly well in the first two sets, no.
And to those, who say that Djokovic "took his foot off the pedal" and explain the following two sets with this: count the number of times Federer made unforced errors from different positions in the first and the second set (I think there must be some kind of problem with the stats on the AO website, as they count a laughable number of UE for the match or at least that is what I see).
How many times his shots sailed long.
I am actually quite amused, when people say that Federer did the wrong thing AGAIN.
I distinctly remember when (probably the same) people were calling for him to shorten the points, even if it means taking more risks in order not to play exhausting tennis that greatly harms his chances.
Now that he does just that, his opponents receive praize for "exposing him", when it is clear as day that, what he does, is out of necessity in order to play a more suitable for his current abilities tennis (I don't think that anyone disputes, how bad his approach shots in that match were).
Yeah, the results are not great, but they are not disastrous either.
After all he was in the SF and he beat several opponents with the same type of game.