I have a 2011 macbook air which I use to use. It has an I5 and 8gb RAM. I recently got a macbook pro retina 13 newest model 8gb ram 256 SSD. I play a game call league of legends. I put the settings on both computers too low on the game. On the macbook air I get 50-60 fps. On the Macbook pro I get 20-30 fps Something must be wrong..