Yes, the lag was causing because of the PB in the server. Strange fact; each time you connect to the server you will lag more and more. The ping is good, the FPS however drops. PunkBuster has scans continuously, the screen will shimmer in a long stream, and sometimes even freezes for 2 seconds!
PunkBuster is turned back off, and probably stays that way. I will try to spot cheaters as soon as I meet them, when in doubt, if someone cheats, I will not ban/kick them, until enough evidence is gathered.