What upgrades should i get for my desktop to run WoW better?

i have a dell XPS 410 when i play WoW on low setting its still is laggy i get around 20 fps at most usually lower. i was wondering what upgrades i should get more ram, or a better video card. thanks

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).