i have close to if not more the 1000 add-ons now

mixture of aircraft and sceneries. I use almost all of the sceneries from time to time, and all but 10 of the aircraft i use, but some very infrequently
i was just wondering if having this number of add-ons will slow down my sim at all, performance and FPS wise?
i know it take a hell of a lot longer to load from desktop, but im not sure about when actlauuy in the sim.
thanks for any help
james


