@TomC RLG: Please try flying somewhere else than LA area and report back. The LA area is extremly heavy on the GPU, there are just houses over houses. If you fly for example in EDDF or KSFO performance should be much better. Please also report your quality settings, including VR settings. Even with a 3090 it might be necessary to adjust some settings when using VR.
Also keep in mind that normal release channel and beta are currently the same.