How to fix screen flickering in Days Gone with Asgard Bragi II DDR5 6800?

I was frustrated by flickering in Days Gone lighting scenes. I updated drivers, but frame rates dropped further. Using GamePP Shader Compilation Queue Manager, I cleared shader cache. I adjusted process priority via Resource Scheduler. Now, 3DMark shows 16-19ms frame time, and temperature is 68-72°C per GamePP sensors. Flickering is gone.