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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Cox gave a lot of praise to the “advanced systems” that the engine had, and used both their knowledge of Italy and other things they researched, and applied it to the layers of detail that Unreal ...

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Epic Games CEO Tim Sweeney has responded to criticism of Unreal Engine 5's optimization, which is becoming an increasingly contentious topic of late. The Epic Games boss has seemingly suggested the ...

Epic Games CEO Tim Sweeney in a media roundtable interview during the latest Unreal Fest event in Seoul, South Korea suggested the reason for the performance issues with some games using Unreal Engine ...

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Unreal Engine 5 performance issues aren't the fault of Epic, but instead down to developers prioritising "top-tier hardware," says CEO of Epic, Tim Sweeney. This misplaced focus ultimately leaves ...