It's not easy getting a 747 rumble out of a laptop. You're lucky, the sound is usually tinny.
But there's a difference between "stable" and the situation where the cpu does the grunt work for the video instead of your gpu hardware. If Adobe and Apple can play nice maybe they can assist each other in getting the above changed in order to lessen the load on your cpu. It's more a "flash meets mac" thing, meaning both sides could do well to help resolve imho.
I'm not joking.