Third Person Example Blurry Objects

Can someone please explain why the objects in the Third Person Example look blurry?

I can see jagged edges on the cube and cylinders. There are also black dots on the wall corners? How do I fix these to be more crisp?

You can change your anti-aliasing method in the project setting to get rid of the jagged edges.

The black dots in the corners is Lumen. You can tune is a bit with a post process volume, but I don’t think they’ll totally go away unless you turn it off.