[A300 stutters every 10-15 seconds]

Along of having the stutters issue I'm also experiencing an completely shutdown of the simulator right after I pick the aircraft from the menu and before it loads the departure airport the sim crashes. 

[A300 stutters every 10-15 seconds]

Was there a fix to issue because I'm experiencing the same issue even after I downloaded the optimised texture. By the way do they just install automatically after the I download each single airline? It's hard to tell difference.