Besides for the inevitable "rubber banding" going on (which I understand entirely), the game runs like absolute crap. My machine destroys the recommended system requirements for this game, so I know it's not my PC.
The game has been pretty fun thus far, but by release I was hoping that it would be optimized. Doesn't look like that's going to happen. There also seems to be a major input lag regarding movement (WASD) and camera rotation.