I’m not quite as bad off as you, but I am experiencing regular crashes when loading the game or loading a flight. When it does run, there is a noticeable improvement to the smoothness, but like you, I am also disappointed that it is not taking advantage of all the resources available on my machine. I get it that not everyone has the same level of PC, but I kind of figure that this is the whole point of having “Ultra”. Still enjoying it, but Multicore optimization and ray tracing can’t come soon enough for me.
Motherboard: MSI TRX40 PRO WiFi
CPU: AMD Ryzen Threadripper 3960X 3.8GHz 24 Core 280W
Ram: 4x Samsung DDR4-2666 32GB (128GB)
Video Card: NVIDIA GeForce RTX 3080 10GB Founders Edition
Drive: Seagate Firecuda 520 Gen4 2TB M.2 SSD
OS: Windows 10 Pro 64-bit (Dedicated fo MSFS2020)
Also, yes, I always empty the community folder before updates, etc., etc.