How can i make my laptop work effieciently with world of warcraft?

So i tried installin world of warcraft yesterday and my laptop was running so slow, just from opening my internet or to opening the control panel. I have a compaq presairo CQ60, 2.00 GB ram , intel celeron (r) 900 @ 2.20GHz proccessor 64 bit operating system.
So what do i need to make my computer run efficiently and run World of warcraft efficiently well,