Re: Poor graphics in bf4 on xbox one
usually, this thing happens when the game just finished loading and it did not finish rendering(loading high quality) textures.
For PC many people experience this for few minutes after loading the game,
i'm not an Console expert, but i can suggest you to completely re-install your game, deleting any available data.
no worries since multiplayer stats saved on the cloud.
this shouldn't be a console damage/problem (physical) if you experience this problem only with battlefield 4.