Hello, I have an RX 460 4GB GPU and I was playing Metro exodus on ultra settings with tessellation off and 16x AF. The first two levels played fine(above 30) but in the Caspian desert level I have 19fps with hevy GPU usage drops to 80%. Also I have a Ryzen 3 1200 with 16gb RAM. The CPU was not utilised 100%. My PSU is a CX 450. What could be the reason for that drop? Is anybody else getting this problem? Also my windows, BIOS, drivers are up to date.