First as always is it running clean.
http://www.testmy.net/t-4257
The best I usually ran was first thing I would defrag, reset the modem (stick my finger on the end of the incoming cable to the modem to ground static ), disk clean. If it is all set up right that should do way better than that. So how long have you had it and how long has it been like that?
And welcome to the forum also travmullin.