While I'm in campaign mode or a battle the screen will go black for a few seconds-with me being able to move the mouse and hear sound-and then the textures will slowly load back in till the game returns and then a few minutes later it will happen again with frequent FPS spikes in between. My system runs the likes of Shadow of the Tomb Raider, AC: Odyssey and Resident Evil 2: Remake flawlessly at 1440p so I'm thinking it must be the game.