A patch adding this functionality has been added to the retail PS5.
Article: Alex Hopley – Gamereactor.cnIf Bloodborne fans don’t get an official remake or sequel, you can be sure they’ll go out of their way to give the PS4-exclusive game some modern features. Recently, a pair of modders called Lance McDonald and Illusion have been working hard to get 60fps Bloodborne on PS5. Now, they finally did, as a McDonald’s-made patch has been put on retail PS5s by Illusion. That doesn’t mean adding mods to your PS5 will be a piece of cake, but it can be done.