https://wccftech.com/assassins-creed-valhalla-update-1-04-quality-performance-options/

Ubisoft has detailed the contents of their next Assassin’s Creed Valhalla patch, and it delivers some much-requested features and fixes. At launch, Assassin's Creed Valhalla didn’t offer the kind of visual options you get with most next-gen games, with dynamic 4K and 60fps being your only choice. Now there will be two choices, including Performance mode, which is the standard dynamic 4K/60fps option, and Quality mode, which drops to 30fps in favor of a more consistent 4K picture. Ubisoft is also promising improved performance overall, less screen tearing on XSX, and more.

You can check out the full patch notes for Assassin’s Creed Valhalla ver. 1.04, below: