The first playable encounter with zombies sets the tone on Series X, where at the back of the mall we go down to the 45fps line as long as all enemies stay visible on-screen. The game doesn't appear to rely on dynamic resolution scaling, so there's no flexibility for Series X to adjust here. Moments like this are uncommon, but it might be an early sign of how gameplay will dip at the extremes in later missions as well. Curiously, testing PS5 in the exact same spot shows a clear performance lead on Sony's machine, going down to the low 50s at worst.