Each iteration of the game does feel different, that much is true.
Now as I predicted before... the next COD game is going to be the "worst one yet" and all of a sudden this game is going to run smooth as silk.
Since you seemed to add that last sentence right as I posted, how are you going to prove that the developers have the laggiest game yet ? Do you have their telemetry data ? How do you know if or if not that their numbers show there isnt a problem ?
how do you know if their data is in the red, yellow or green ?
The players of BF3 complained left and right there was a problem but according to their lead developer their telemetry never showed there was a problem . At least they had to guts to say it in an interveiw.