devilNprada
Member
"FLEMING: In the case of 4K and HDR, in the same way that when they were working on the PS5 they did some collaborations with Insomniac using the Spider-Man codebase, we were that codebase on much of the PS4 Pro. We just provided them the compileable code and let them hack on it for a little while, which is useful for everybody."

The First 25 Years
An oral history of Sony’s big gaming play, and how it changed the worldwww.gameinformer.com
It would make sense to optimize the code to maximize the resulting speed increase in order to make the demo as impressive as possible. It was a behind closed doors loading speed demo to show off the hardware's load speed, not a direct comparison of the user's daily experience of playing a PS4 game on PS5 via backwards compatibility.
Killjoy..
But thanks
 
	 
				 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
					
				 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 but he was very naughty yesterday.
 but he was very naughty yesterday. 
 
		 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		