Hi mate,
Personally I think this depends on your machine because if you have a high end machine that can run X Plane 11 at 40FPS or higher I dont think you will notice a difference in gameplay. However if you were to try running it as admin you might find that there is a boost in frame rate, I cant confirm but seems like there is potential for better performance. If you have a lower end machine you might find that the frame rate jumps up a bit and gives better performance in general to the game. I might try this theory tonight when i get home and ill let you know of the outcome.