Powerful computer - Progressive stuttering and lag

After I've tested all my mods, I've come to the conclusion that individual mods aren't the problem, but rather that they all together cause the stuttering.

Regardless of my PC configuration, I haven't noticed much change in the reloading process with or without FSUIPC, GSX Pro, FSLTL, vPilot, FS2Crew, Little Navmap, Navigraph, SimBridge. Only all of them together cause a significant lag. I've played through the approach to LTAI over and over again.The jerking starts 3nm before touchdown.

So I assume it depends a lot on the weight of the community folder. ASOBO has to solve this.