It may or may not. You have a problem and as long as you have not identified the problem, it is hard to tell whether a different OS will help.
A link with many ideas about computer setup http://forums.adobe.com/thread/436215?tstart=0
And even more hardware discussion http://forums.adobe.com/community/premiere/hardware_forum
Work through all of the steps (ideas) listed at http://ppro.wikia.com/wiki/Troubleshooting
If your problem isn't fixed after you follow all of the steps, report back with the DETAILS asked for in the questions at the end of the troubleshooting link
Welcome to the forum.
Some of the tips in this ARTICLE might prove useful for setting up your computer, and especially useful for getting ready for an editing session.
Also, as so very much can depend on your Assets, your Project and your computer, this ARTICLE will give you tips on the types of info that would help us help you. Be sure to follow all of the links.