Digital Foundry: Yes, It's Faster: Switch 2 Back Compat vs Batman Arkham Knight + the Witcher 3
TL;DW: Switch 1 games that struggled with framerate now run much better on Switch 2 via backwards compatibility. Batman Arkham Knight ran at an abysmal ~20FPS on the original Switch, but now runs at a stable 30.
A console in 2025 "runs at a stable 30" fps and that's good news? Of course this is slightly faster than a mobile chip from 10 years ago, but that's an incredibly low bar to set.
We know it's faster, but allegedly Switch 1 games run through a compatibility layer so there was some worry it wouldn't boost performance on old titles. The video confirms it does.
YT performance videos show Witcher 3 running at 60FPS on Steamdeck and Arkham Knight averages around 53-55FPS on Steamdeck. Side by side comparison videos of Witcher 3 show Steamdeck has higher graphical fidelity over Switch 2 as well.
Switch 2 can probably reach those numbers if the games were updated, currently it's just running the Switch 1 versions of those games which are capped at 30FPS and a lower resolution.