I strongly disagree this to be a good way.
Basically it is a way to cheat FSX to allow to run with frame rates unlimited and overcome the VSYNC problem. What is does not attack is the fact that the FSX logic does not work properly. All CPU power is given to graphics, that is why that is faster, and ATC,
AI traffic, texture management and hundreds of other processes will time out in every cycle.
AI aircraft will get stuck on a taxiway since ATC could not call them and forget them with a stack overflow, etc. At least do not complain FSX logic not to do assume it should do, when you don't give enough resources to it, and the way to do so is to set the delimeter at 70% of what can be achieved safely. You don't have stuttering than, too...