FYI. the recent update completely changed the graphic draw architecture in the sim.
All this fps drop and stuttering started right here. Some users have seen an improvement and others, well, not…
That said. All the way back to the first flight sim release those in the hobby realized early on that it would be years of hardware development before we could dial all the settings to full. By the time I had a computer that I could do that, the new version was out and I was back to 25 fps. I once heard a FS developer say that they intentionally programmed two generations ahead so that they pushed the hardware guys to keep up. True? Don’t know.