Is there a way to improve geometric aliasing?

Please see the issue in this video, probably better to make full screen

URL here

The Unreal Scene is here:
https://storage.googleapis.com/public-community-ue5/MyProject3.zip

How to fix this problem is something that I know how to do with a CPU renderer

Just crank the camera anti aliasing samples.

You might know some of my work from here:

Just wondering if you can make this render smoothly and explain the process.