Hey guys. I recently bought a brand new macbook pro around a week before OS X Yosemite was announced. My macbook was as fast as lightning when I first got it and it's boot time was timed at an average of 6 seconds. Now ever since I got the Yosemite beta my boot times have dropped to 16 seconds. Also opening any application takes a long time. There is also huge lag whenever I open more than one application. I was wondering if this is a bug with yosemite or if speeds will stay like this. Thanks!!!