Crysis warhead performance dropped

[tom91x91]

Installed the game yesterday, specs in sig, and tbh it was running at a mixture of gamer and enthusiast 30fps+ constant, today at the exact same part in the game it was choppy, i had to turn it all down to gamer and it was still a bit choppy. Playing it at 64bit DX9 and 1920x1080.

Suggestions?

Thanks

 

[tom91x91]

sorry for bump but just tried playing again and its only smooth on mainstream now, when yesterday it was pretty smooth at a mixture of gamer and enthusiast. tried taking the oc on my card as it felt a bit unstable but fps stayed the same.