What is the reason and/or fix for UE5 (5.03 & 5.1) freezing my whole pc?

[mistergregz1 (Grégory VILLIEN)]

Hey all, I found a solution for me here :

UE 5.3 - Slow performance issue at start

Hi everyone, I recently installed the latest version of Unreal Engine 5.3, and encountered a significant performance problem when opening a new project. The entire software operates at a sluggish pace, to the extent that when I interact with elements in the user interface, it takes more than 2 seconds for any response to register. Here’s what I’ve already checked in my attempts to resolve this issue: Engine Scalability: Ensured the engine’s scalability settings were optimized. Shadow Map: Che…

Hope this help