Smooth is relative… I’m on a RTX 2080 Ti, i9-9900K and 32 GB RAM, and I only get my smooth flight if I set my Volumetric Cloud settings to High. That’s just how it is I guess. Broken clouds might have a lot more processing power due to the individual volume that needs to be calculated, compared to an overcast or something like that which is generally just one big volume with fewer CPU/GPU processing needed.
That being said, there’s a few things that you can do to improve FPS:
- Go to BIOS, and disable Hardware Virtualization Technology and VT-d, or something like that.
- Follow Optimised Graphic Settings guide to match with your hardware. Yours would be on the Medium range with nothing set to Ultra.
- Disable top menu pages, like VFR Map which can take away a lot of FPS.