[EPIC][0.76.1][Performance] - FPS tanked

Summary
After a few weeks of ‘ok’ performance, the FPS has now tanked to around 20fps, no matter what graphics settings I use. Task Manager shows GPU utilisation between 10-15%.

See video below (around 0:55 arrive at island).
See 1:40 when I change graphics to ‘Laptop’ 1080p with little difference in performance.

Seed
517000

Settings
See video

Steps
No idea…

Extras
Threadripper 3970X, RTX 3090, 64GB RAM, Latest Win 10 updates, NVIDIA Studio Driver 461.40 (Released 01/26/2021)

  • I loaded another save slot (progress day 3, hardly any items) with no change in FPS
  • I have validated game files via Unreal launcher
  • Reinstalled GPU drivers
  • No difference between DirectX or OpenGL
  • Update: I reinstalled game and no change in performance

Video:

GPU Utilisation:

Right.

I am pleased to report that this excessive FPS issue was not to do with Stranded Deep. It seemed there was some Windows file corruptions which were only resolved by reinstalling Windows.

I still only get about 45fps max at 1440p medium settings, which with 3090 should perform better…