Epic CEO Tim Sweeney explains why Unreal Engine 5 games often struggle with stuttering and poor performance, pointing to late optimization and the need for developers to rethink their workflows.

Frankly, The Witcher 4 is hitting something very close to a cinematic CGI level of presentation thanks to the new features in Unreal Engine 5.6.

Article Summary The Witcher 4 unveils a tech demo running in Unreal Engine 5, showcased at The State of Unreal 2025.

Graphics Cards Stutters and hitches in Unreal ... 4 will run just as well as its tech demo after talking with UE5 devs and analyzing Unreal Fest tech data Hardware CD Projekt Red and Epic claim ...