Geez XP much? No i actually think XP is more efficent.
Aren't the minimum specs for CSS pretty low? I run the game at like 90% of the highest it could possibly run, pretty much any game before 2010 works well on my computer Medieval2 total war for instance, its these forced high graphics games like Shogun 2 that i can't run, i mean i can run them, but they look like shit at the settings i can run them efficently on. My comp is dual core i believe, has nice really high processor speed though, could do with more RAM, though i have 2.75 of 3 GB useable. Just run the game at lower graphics platform.