https://wccftech.com/assassins-creed-valhalla-xbox-series-s-performance-mode/

Assassin’s Creed Valhalla latest update introduced a new Performance Mode on consoles, and thanks to this mode, the game can run at 60 frames per second on Xbox Series S.

A new video shared by The Verge's Tom Warren showcases the game's performance mode on Xbox Series S. The mode does reduce frame rate and select visual effects to provide the higher frame rate.