Hey there @Evilnescu! Texture resolution plays a large part in this as well. You’re DX12 and SM6 because you’re using Nanite, so you’re going to get far more overhead than most projects.
Are these textures 4k - 8k?
Nanite technically should reduce GPU overhead, not create it usually. This can sometimes stem from Nvidia’s settings configuration or older. Techtut’s solution might work out immediately if this one’s the case.
Is this accompanied by crashes? Particularly the DX3D driver failing or Rendercore crashing out?