I updated this morning to 11.30 and noticed a severe drop in fps vs previous version. I have a i7-8700K with a GTX 1060 6GB. My son also uses it with similar hardware and saw the same fps drop with latest update. Looking at CPU and GPU usage in task manager, I can see that x-plane seems to be using the CPU a lot more to render (near 95%) and the GPU less than 25%, whereas previously the CPU usage would be much lower (under 50%) and GPU usage would be nearer to 70%.