One of our most popular Operating Systems today is Mavericks. Typically running on iMac, this was one of Apple's biggest releases in 2013. But a lot of people claim it made their computers worse. It slows down application speed, setup speed, run speed, video speed and much more. Although it came with many handy Applications and features, a lot of people say they would be better staying with OSX Mountain Lion. Mountain did run a lot faster that's for sure. Some computer fix speed programs can fix this problem, but besides that it leaves us waiting for the next Operating System. Hoping it will fix this issue. Other tidbits that could help is seeing if your spotlight is loading the update endlessly. Or checking to see if your time machine is backed up to a crawl. There are lots of these, but the main problem is just the OS itself. If you have any suggestions or bits, please ask or mail me. Thank you.