Mountain lion slow and dvd player doesn't work, help?

after updating to mountain lion everything moves very slowly when booting, logging in, or trying to type something in the texts fields. it also crashes and freezes up a lot and dvd player just tried to read the disk then spits it back out, the hard drive is brand new so is this a problem with mountain lion because i had no problems with any of this before the update? any ideas on what i should do?

Go to the App Store for a ML updater just released.

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Is it possible since I updated snow leopard to mountain lion that my isight mic doesn't work properly my voice sound like a robot

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Mountain lion slow and dvd player doesn't work, help?

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