I suggest you return it specially if you are planning to run an OS on it, definitely not the way to go with that drive. While it doesn't state the RPM anywhere on the label, it spins at about 52000 RPM which is not what you want if you are looking for performance. I just bought one a week ago (actually a 1.5 TB WD15EARS) during an impulse buy and it has been just awful, I have older PATA drives that run faster, an couldn't return it to the store since I threw away the label
anyways, I'm selling it to a friend who only needs it for storage at about 40% off and getting myself a 1 TB SAMSUNG Spinpoint F3 instead, for what I read on reviews that's the best kind of performance you are going to get for about the same price, so I'm hoping that will do it.
While there might be a "fix" to increase speeds, setting the jumpers etc I wouldn't hold my breadth on it. This drives are designed to run on low power and mainly used for storage.