

After assassins creed Valhalla runs for around 20 minutes, framerate begins to drop to single digit figures and VRAM usage is ~100%!!
System configuration
Core i5-4440
16 gb Ram
nvidia geforce 1660 gtx ti (6GB VRam)
nvme ssd
Interesting is that game is using around 4 GB of system ram even though much more than that is available. This issues requires restarting the game and after game is restarted, it will run for another 20 minutes and again show the same issue.