Core Viewpoint - The performance issues faced by games developed using Unreal Engine 5 are attributed to developers' insufficient optimization efforts, particularly delaying optimization until the end of the development process [3][5]. Group 1: Unreal Engine 5 Features and Adoption - Unreal Engine 5 showcases advanced technologies such as Lumen global illumination and Nanite virtual micro-polygon technology, which have made it a preferred platform for game development across various teams [1]. - The engine has gained popularity with the rise of next-gen consoles like PlayStation 5 and Xbox Series X|S, as well as new GeForce RTX graphics cards [1]. Group 2: Performance Issues and Developer Challenges - Many high-profile games developed with Unreal Engine 5, including titles like "Stalker 2" and "Silent Hill 2 Remake," have been criticized for performance issues such as low frame rates and stuttering [3][5]. - Tim Sweeney, CEO of Epic Games, emphasized that the core issue lies in the development sequence, where studios often prioritize high-end hardware development and postpone optimization for lower-end devices [5]. Group 3: Solutions and Future Directions - Epic Games is taking steps to address performance challenges by enhancing engine support and providing more automated optimization tools for cross-platform development [7]. - The company is also focusing on training developers to adopt early optimization as a standard practice, recognizing the increasing complexity of modern games [7]. - Epic is integrating optimization experiences from "Fortnite" into Unreal Engine 5 to help improve performance on lower-end PCs [7].