ever since upgrading to a SSD I have a blazing fast computer, I have not seen one beachball, I wonder if Mavericks just doesnt like HHD that much
Lion and Mountain Lion didn't like HDDs much either.
It was constant beachballing in my case with a 7200rpm HDD.
As soon as the Samsung 840 Pros became available, I carted off a few boxes of the 512GB models and switched all my Macs to SSDs.