I don't know what the Mavericks install did, but my 17in 2.2ghz early 2011 just crawls now. I have tried everything that is suggested on these forums to fix it, but regardless it still crawls. My question for the forum is: would upgrading from 4gb of ram to 16gb help my situation? Amazon is showing Crucial ram kits at $140 for the 16gb 1333mhz speed. Second question: does Mavericks really favor a SSD and thus I need to upgrade from the original 750gb 5400 rpm drive that came standard? Amazon currently has this guy for sale: http://www.amazon.com/Samsung-Elect...116011_1_2?s=pc&ie=UTF8&qid=1404565795&sr=1-2 Any advice would be greatly appreciated.