Definitively try another pool. Pointing your hash to China if you're far from China is silly in the first place. And its still silly in the second place since they have a big fee.
What pool would you recommend nowadays?
Originally I was on BTC Guild but the luck was low. Then Ghash... Of course BTC Guild is closed now, otherwise I'd probably have went back...
I'm looking at BitMinter, Slush, Eligius and other smallish US-based pools... I like supporting the little guy if anything... And after looking at Ghash's mining power... My god, how the mighty have fallen.