I plan to switch from my One S to the Series S, the reason for this is because my one S has a very long charging time, e.g. Open play
I mainly play Fifa Rocket League and GTA
When asked, I would notice a difference in performance
4K and FPS don't interest me that much, because I only have a 1080p monitor and believe 60fps
The general loading of games and content is faster.
Unfortunately, I can't tell you what it looks like in the individual games