iOS6 makes my 4S not work (wifi apps facetime calls)

Since updating to iOS6, my 4S is incredibly slow with internet (sometimes to the point of not working at all), and my apps load incredibly slowly. What is most irritating, however, is that I cannot have phone calls or facetime. Calls are constantly dropped within the first minute and facetime has to reconnect after, at most, 15 seconds before disconnecting completely. I've looked around and not seen any fixes. Does anyone have any ideas?

Also, why isn't Apple letting the world know they're working on fixing this problem? Does anyone know if they are even remotely close to fixing this? When you can't use your phone as a phone, it's pretty disgusting.