Soldato
No idea really. I've got the ps4 pro @1080p so I've never really had frame rate issues to begin with. Just found info below on the 'downgrade' so I'm giving it a read now.Maybe it run's slightly smoother with the graphic downgrade , I haven't played it for months since completing the story but it always felt a little clunky maybe they are trying to sacrifice the graphics for smoother gameplay?
at https://www.dualshockers.com/red-dead-redemption-2-rdr2-graphics-downgrade/