Visuals - Graphics Preference

I own an xbox one s and split screen runs like a dog. I understand Gearbox has added an additional option under ‘Visuals - Graphics Preference’ where you can choose max performance, however this is not available for the Xbox One S.

Can somebody please verify for me which consoles this setting is enabled for as I can’t find a definitive list anywhere.

Xbox Series X - Yes
Xbox Series S - ?
Xbox One X - ?

(I don’t want to spend on a Series X just to run one game in split screen)

Also… can anyone tell me how the game runs in split screen on the One X, or the Series S?