GPU performance tuning of "HZB SetupMips" (As seen in GPU Visualizer)

Up to 25 ms for me on a classic project (no VR) with 4.16 and DX12. It happens on packaged game but on specific platforms … Even with occlusion culling, SSR and SSAO disabled. But for me the stat if “HZB” only (from stat GPU command), not mips.