Arch Worth it for the Performance Benefit?

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http://ubuntuforums.org – I like the simplicity of Ubuntu. That being said I've always felt like trying arch. Also, I'm kind of broke right now and am using my netbook with an extra monitor as my one and only computer. I started out with xubuntu and added gnome shell to 12.04 and am really digging it. That being said I can't help but wonder how much performance boost I could get by building arch from ground up? Would it be signifcant enough to invest the time to setup? Btw this netbook has been upgraded to 2gb ram. (Hardware)