You must turn on your PlayStation 5 and head to the device settings. You then have to scroll down to the Screen and Video tab. You must find the "120 Hz Output" option and change it to "Automatic."

Infinity Ward These are the best PC settings for your graphics for max FPS in Warzone.

1
Bullet Impacts & Sprays: On  This is up to you, but many people prefer it On for gameplay.
2
Shader Quality: Medium.
3
Tessellation: Off.
4
Terrain Memory: Max.
5
On-Demand Texture Streaming: Off.
6
Streaming Quality: Low.
7
Volumetric Quality: Low.