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

I want to confirm that this issue affects 4.16 as well. My HZB spikes up to 5,000 ms after migrating to 4.16. Previously in 4.15 it was consistently at 8-10 ms. Epic, please send us some guidance around this issue, if it is unfixable…