crashes too much

Beautiful looking game, but cannot get more than 15 minutes without the game crashing on my upgraded Mac Book Pro retina I purchased a few weeks ago (Nov ’14). Did the suggested actions for turning down the graphics to help performance, but still crashes…..all the time. Passed the compatibility test prior to purchasing, I feel like such a fool :(

Goodiedash about Total War: SHOGUN 2, v1.0