Vulkan API runs better, but when I open Beammp in the Vulkan API, some artifacts appear on the screen and it keeps flashing (I know that Beammp is not official, and I also know that these artifacts are not from my GPU dying) but I wanted to know what this could be?
Those artifacts are caused by Vulkan itself. Read more here: Vulkan API – Feedback, Known Issues, and FAQ | BeamNG