Will my Mac run slow if I update it to Mavericks? Today my Mac wanted me to upgrade it to Mavericks. I'm hesitating because it is a bit old (Mid 2009 MacBook Pro) and I don't want things to run slow. I'm currently using 10.8.5 and it is OK. I have a Core 2 duo (2.53 GHz) with 4 GB of RAM.

What do you recommend? How was your experience?
No, it should run faster.

I have installed Mavericks on three machines:


A 2007 iMac
A 2010 Macbook Air
A 2012 Mac Mini


All models are displaying noticeable speed improvements. Mavericks also freed up a substantial amount extra hard drive space on all my devices.