Your account does not determine lag. That's actually the most stupid thing I've ever heard.
Why are you in my thread advertising? Get out, reported.
Next time you play black ops, go to the multiplayer options and press select. Thats the system information, you will see near the bottom it says geographical location: us, this information is saved to your black ops account. So, if I play on your account it will still say geographical location : us, thus connecting me to different servers or whatever. Like I said to him, I have already had this problem.
I wouldn't just say it for no reason at all, that would be stupid.
Don't get me wrong, I'm not trying to put people off. It's just true.