Clouds :(

[macro]

Hi all,
I play on atag server quite alot and noticed they had clouds on. Id never played with them on before and noticed a massive fps drop whenever they are in view, meaning if i were to look at an area without any clouds i get smooth play then drop fps again when they come back into view.

So i need to know if there is a fix for this or if not if its possible to force them off withput being banned or labelled a cheat.

I have tried lowering the settings but doesnt seem to have any effect.
My specs: i know isnt great but runs fine other than these poxy clouds!
Win 7 64bit
4 gig ram
2.8 gig dual core cpu
9600 gt 1 gig nvidia