I have written a document with my settings to fly with VR for Flight Simulator after SU10. If you want to fly without stuttering with HIGH and ULTRA settings read this article and follow all instructions step by step.
Very important: Update your Windows and your drivers. Check the last version of NVIDIA frequently.
Set your power plan of Windows to High Performance
Read and follow the PDF
I've tested this setup with my Oculus Rift S only
i9 9900K 4,8 Ghz all cores
ASUS TUF Z390-PRO Gaming Motherboard
Corsair Vengeance RGB Pro DDR4 3200 PC4-25600 32GB 2x16GB CL16
Corsair Hydro H100x Kit
Corsair Vengeance 750M 750W 80 Plus Silver
NVidia MSI GeForce RTX 2080 VENTUS 8GB GDDR6
Samsung 970 EVO Plus 500GB SSD NVMe M.2
Oculus Rift S