Disabling Lumen and Nanite makes the shadows look smudgy?

Hey all, I’ve followed this tutorial to disable lumen and nanite (the game I’m creating doesn’t require heavy lighting and shadows so I’m working to optimise them the best I can), but after restarting my project the shadows look smudged and just overall bad. Is there any way I can fix this?

For context I’m using Unreal Engine 5.5