i7-2.8Ghz, Vista 64 with 8GB DDR3 ram, GTX260 - lags out too much to be playable for me on this desktop pc.
What I did then, was I created a new collection in collection manager, edited the collection, and added everything that is named 'ramp'.
Then I selected "collection1" to select all the ramps in the collection, changed the Ramp Type to "RampTypeFlat", and clicked the circle radio button for "Solid"
When adding everything into the new collection, do not add RampDrop1 and RampDrop2.
This change makes it playable - I'll need to go back and change the few 'real ramps' to wire or alpha later so it looks as it should.
I wouldn't think 117 alpha ramps would kill the framerate so much, but then I don't want to mess with the performance slider so I leave it at maximum there too, in video options.
Edited by destruk, 28 May 2012 - 08:09 PM.