Getting back to the topic, yes, you can overclock to get better performance. All you need to do is find an application you trust to do it. Once you find one, put up a link so I can tell you what to do with it.
By the way, you can also overclock in the CMOS setup, but I'd need to know who made your BIOS to direct you where to go.
Happiness is not about being perfect.
It is about seeing beyond the imperfections.