Something is not right, i got reset yesterday and today all servers lag like crazy for me, everytime i see an enemy too.. not playable helP?

Well i guess that i'm not getting my stats back since i played yesterday but why the lags

I have experienced laggs too and my pc is good enough cause i can play farcry 3 on ultra and dx 11 with ~ 90 fps. I always have ~400 in mw2 but since yesterday it laggs all few seconds... its really annoying. theres another thread about that @AddeezZ /forum/viewtopic.php?f=7&t=23725