The GPU of the series S is simply a lot worse, socutting quality by a bit won’t cut it. I also suspect that since they always quote the split screen as problem, it might be about the number of textures to be loaded in when the game is kind of running twice, not the quality.
For a second I thought they wear masks the wrong way, then I realized that those are hair nets for their beards.
But yeah, especially seeing the rest of their clothing the lack of gloves is weird.