Not that the piece itself is overrated, but the style its typically played in is. I hate when people play the first movement at devastatingly slow tempi and then act like someone offended them when they play it any different. Honestly, when I looked into the story behind this piece, I did not get sad and depressed. I got anxious, fearful, powerful, chaotic. As such, I usually bring this a bit uptempo to anywhere from 90-110 bpm and almost disregard most dynamics. First off, it speaks more and secondly it matches with the history.
Second, please don't find this offensive. I have one enlightening comment to all who do.
How do you know what it sounded like when Beethoven played it? Literally none of us were around, so I don't think it's accurate to use the "accepted standard" as the be-all and end-all interpretation of any piece.