That's not a very powerful "gaming" laptop. I hope you didn't spend more than $700 or so for it because that's all its worth.
You bought low end hardware and expected too much for it.
How much money do you have?
This is a good deal
http://www.amazon.com/Lenovo-59345759-Z585-15-6-Inch-Laptop/dp/B009AEPS4K/ref=sr_1_3?ie=UTF8&qid=1357091576&sr=8-3&keywords=a10+laptop
You should only need the default one, but I would go for the advanced because Intel Wireless adapter have a really good range, and Bluetooth is nice for only $9 more.