I've spent some time fiddling with the OpenGL settings and managed to get from 9 to 14 FPS (and yes, that makes the game much more responsive!)
Here's what I found:
Antistropic Filtering: On -> Off improved 9->13 FPS
Triple Buffering: Default -> On improved 13->14 FPS, seems much more responsive in menus
Driver Memory Footprint: Default Normal, Low - Unplayable, High - No Immediate Change (Left on High to allow for more memory if required)
Refresh Rate: No Change (LCD Display)
Colour Quality (Bit Depth): No Change
FXT1 & S3TC Texture Compression: No Change
Texture Colour Depth: 16 BBT - No Change - Just Looks Ugly
Asynchronous Flip: Off -> On maybe 0.5 FPS decrease
Flipping Policy - No Change (Decrease 1 FPS with Triple Buffering)
Depth Buffer Bit Depth: 16 Bit - Unplayable