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.
In a nutshell: Unreal Engine powers some of the world's biggest games, but its reputation has taken a hit as several high-profile releases stumble with performance issues. Epic CEO Tim Sweeney argues ...
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