I'm sure you've gone through this dance by now. A new game comes out after years of hype, using Unreal Engine 5, and it runs terribly on some (or even all) platforms. A quick glance at Twitter, Reddit ...
TL;DR: Unreal Engine 5 revolutionized game development with advanced technologies like Lumen and Nanite, but many UE5-powered games in 2025 face performance and optimization issues across platforms.