Please help! Fog of War issues.

[The Gentlemadman]

Hello. Let me begin by saying, that I have been a fan and avid player of the Men of War series for the last two years. I played alot of vannila MoW and bought AS a soon as it came out. I loved it so much I even managed to get 200 hours out of it even though the multiplayer ran terribly! But, eventulay, it cought up with me. Why does the multiplayer lag so bad when the single player works brilliantly? I played with settings and no matter the level, high or low, it ran poorly. Then I played a multiplayer match without fog of war... Bam! it ran exceptionaly well! I don't get it! I turned of the setting in the game options that says it wont diable the core effect, but that doesnt really help. Please, if you have this issue or know how to help, it would be greatly appreciated!
Thanks, Domoe