ubuntu 12.10 running very slow on dell xps m1530

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http://askubuntu.com – i am new to ubuntu and linux. i have installed 12.10 on my 32bit machine with 4gb's ram and Intel® Core™2 Duo CPU T9300 @ 2.50GHz × 2 processor takes a couple of seconds to open any application and can barely play video, very choppy and un-watchable windows 7 and 8 run fine on this machine, maybe i am missing something, can anyone help? (HowTos)