Hey everyone, I am sorry, I have been searching hard on these forums and couldn't find the thread for the "best" performing Mac OS X version for my 2010 2GB Macbook Air 11". I currently have 10.10 installed on it and it is very slow when switching between tasks from Safari and Word. I have a feeling its the 2GB bottleneck that it is hitting. In your opinion, what is the best Mac OS X version I should install that isn't too "RAM hungry". I still want some "modern day features" such as Airplay mirroring, Messages, iCloud Sync, and to run the latest safari that works with today's standards. Does Mac OS 10.8 (Mountain Lion ) sound like the best choice for me? Thank you for your help!