The Witcher 2 Enhanced Edition fps drops problem. Any ideas?

[Guest]

Hi everyone i recently upgraded The Witcher 2 - Assassins of Kings to Enhanced Edition and i started to get fps drops in cutscenes. The game runs with 60 fps and i ged a cutscene boom! 47 , 40 ,33, eaven 28 fps. Iran the game without this kinds of drops bofore the upgrading to EE 60fps almost all time.
My pc:

CPU: i7 2600 4.3 ghz
RAM: 8gb ddr3 1333mhz
GPU: palit gtx 560 non-ti 2gb 2x SLI

Any ideas why this is happening and how to fix this?

 

[Sunius]

Cinematic Depth of Field.. It's very hard on computer resources. Though it looks beautiful and is only present in cinematics .

 

[Guest]

Cinematic Depth of Field.. It's very hard on computer resources. Though it looks beautiful and is only present in cinematics .

i see i turned it off and the game ran with 60 fps in the cinematics.