Increase your game's performance by completely disabling game objects based on the camera's frustum or distance.
WHAT IS FRUSTUM CULLING?
Increase your frames and performance using this tool that disables game objects completely when they're not in view (or distance). Stop events, scripts, animations, sounds, basically any and all components on an object when not in view and re-enable on view, by disabling/enabling the object itself.
s://assetstore.unity.com/packages/tools/camera/frustum-culling-184023