im guessing your using a macbook pro. if you are, awsome thats the laptop im using atm.. i love it, but i would never install windows on it... idk i think thats just blasphemus.. even though apple does say its ok on their website..

(time to derail)

i think the windows side runs a bit better on some programs, but the only real reason i can think of is that the programs are coded for the risk proccessor, not the new intel. once the mac finally puts out upgrades and patches for the processor to run more efficently... these programs are gonna fly..

also, osx > that new windows OS..