Unreal Engine 5 has been disappointing in terms of optimization since the first version. It doesn't matter whether developers can't cope with the features of UE5, or whether there are internal problems with the engine related to the operation of Lumen and Nanite. Users evaluate the result, and it is often disappointing — especially on weak devices.
Games on UE5 are released poorly optimized and visually often little different from projects on UE4, and sometimes look worse.
Now Epic has introduced Unreal Engine 5.7. The company promises significant improvements, particularly in the area of Procedural Content Generation (PCG). According to the creators, this tool works almost twice as fast compared to version 5.5.
According to Guru3D, the new version also uses GPU and CPU more efficiently. Also, UE 5.7 adds Nanite Foliage — a Nanite geometry system for vegetation, as well as redesigned MegaLights lighting.
Unreal Engine 5.7 is currently only available in a test version (preview).
One of the latest high-profile releases on UE5 was Borderlands 4, which received a wave of criticism for performance issues.
