The game has been optimised for Xbox Series X/S to hit 60fps according to Microsoft, but on Series S it runs at 30fps with no performance mode option to change this. Sega did provide a solution to TheGamer, involving amending the main console settings. Watch on YouTube Sonic Frontiers - Showdown Trailer Sega suggests that if your TV allows for a 4K UHD display, this may be causing the lower frame rate. As such, it recommends changing the TV & Display Options on the console to 1080p in order to hit 60fps.
However, players are noting that this does not fix the issue, as per posts on reddit. Eurogamer has also verified with Digital Foundry that the proposed fix does not improve the frame rate. Sega declined to offer further comment. Sonic community manager Katie Chrzanowski has noted Sega is looking into a performance mode for Xbox Series S, so a fix may be on the way soon.
“Sonic Frontiers is a hot mess of a reinvention that can’t commit to its new direction,” we said in our Sonic Frontiers review. “Yet for hardcore traditionalists who only want to see their blue hedgehog in two dimensions, this isn’t the 3D outing that’s going to change their minds.”