That depends quite you mean the opposite of IW with MW3, at the start of MW3 I had trouble with lobbies but things have got better as time has gone on. So the updates may have made things worse for you but better for me? and that is the problem I see with lag compensation. Personally I would rather they just went back to a netcode like MW2. It wasn't perfect but seemed to be better and more consistent for more people more of the time.