Epic CEO: Unreal Engine 5 performance issues mainly due to devs not optimizing properly

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I do kinda feel like stuff like Nanite and Lumen, while they do look awesome, are kinda a bit too ambitious for current console hardware to run in a performant manner, at least as long as devs insist on shooting for 60fps.

UE4 had a similar issue last gen where games pushing its features often fell below the usual standards of 1080p on PS4/900p on XBO cos they taxed the hardware so much.