Well the slower playing while not making the music fall apart is the difficulty isn't it?

I like Beethoven at a good tempo, but sometimes its easy and wrong to rush it.
If you want to hear how to make it hang together, listen to Gilels. He is a master of it.
My teacher always says youtube is fine to get an idea, but evil if you want to play what others are doing, since there is no guarantee that they are doing it right either!
I don't know his recordings as well as Gilels, but Brendel should be pretty good as well.