Desaturation Effects and performance

Short version of the story:

CoH was running very poorly on a system with a Geforce 7025 on board video.
(I know! So shocking!)

The game would render 3 to 6 frames then freeze for 3 to 6 frames, then render another 3 to 6, then freeze another 3 to 6.

After running through all the tests, scans, and software updates I could think of I tried playing with a few more in game settings.

I thought Desaturation Effects were only used at the beginning and end of flash back missions, but disabling them fixed the problem. (Well, the freezing and unfreezing, the game still runs about as well as you'd expect on the aging on board video.)


What else are they used for?

That description may be incorrect and desaturation may be used in other situations.

It's probably best to disable "Desaturation Effects", "Bloom Effects" and "Depth of Field Effects" in addition to most if not all Ultra Mode effects for your GPU.

Thanks.
I have most of the other in game settings reduced already.

Hoping to get a new card for this system after tax day.