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The widely recognized performance issues of Unreal Engine 5 are primarily due to the development process, which often prioritizes optimization for lower-end hardware only at the final stages. According to Epic CEO Tim Sweeney, during an interview with Korean outlet This Is Game at the annual Unreal Fest 2025 in Seoul, many developers start working on games using high-end hardware and leave optimization and testing for less powerful systems until the end.
Sweeney explained that optimization is a complex task and should be integrated early in the development process. He stated that Epic is taking several measures to address this issue. The first involves improving Unreal Engine 5 support by adding automation features for various devices, which will make developers’ work faster and easier. The second measure is enhancing developer training with specific optimization courses to raise awareness about the importance of early optimization.
With games becoming more complex than a decade ago, Sweeney emphasized that engine-level improvements alone are not sufficient. Collaboration between game developers and engine developers is essential to resolve these issues.
Epic is clearly working hard at the engine level to solve Unreal Engine 5 performance problems. The latest versions of the engine include numerous improvements. For instance, Unreal Engine 5.6, released a few months ago, offers enhancements estimated to boost GPU performance by up to 25% and CPU performance by up to 35%.
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For more details on the new features in Unreal Engine 5.6, visit this link: [WCCFtech article](https://wccftech.com/unreal-engine-5-6-now-available-open-worlds-60-fps-ray-tracing/).
