Cheers, MostHost, I really appreciate the time taken to reply. I thank you too for the emphasis on optimization and frame time. I run with stats nopw to check precisely that now, so thanks.
I think the solution is figuring a pixel depth mask that can drive two texture scales (based on “distance”) that doesnt upset what the World Displacement wants to recieve. Ive tried, with my limited understanding, to generate an alternative to what the Pixel Depth node does in the hopes of the World Displacement accepting it. Ive failed so far. So many times in fact that I dont think its actually possible. Do you think im wrong?