I have Vista and my sound has been fine. So directsound is simply slower under Vista? Well that is the price you pay for using a more demanding OS. You need the specs to match it. I am sure better video card would give him back the fps he lost. Anyone who plays games on their PC should at least have a mid range card, which would be more than plenty for this emu. As you can see from my sig, I am an avid PC gamer.
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Intel C2D E6300 @ 2.33ghz
4gb of GeIL DDR2 800 5-4-4-12
ATI Radeon 3870 512mb
Creative X-Fi Fatality Pro Gamer
LG L206WTY-BF 20" 1680x1050
Vista Ultimate SP1 x64