Its probably your connection my friend. There are no servers so its not like Battlefield 1943, its hosted by whoever has the best connection in game. Try restarting your router.
I agree this is happening to me in a huge way. I have never had a problem with lag before with anyother game also my NAT is Moderate (It was open till about 2 weeks ago)
well the game now runs lag free.. but the only thing....that some players wont take any damage when i shoot at them....
Been playing since it was released a few hours ago they are right the lag is increasing currently almost unplayable.
As more people get in and more matches are available you should see better connections to other people since there's a bigger pool of games to choose from.