Likely less of a hardware thing and more of a, “made with a ten year old engine that was discontinued seven years ago.”

Originally I was gonna say Unreal Engine 5 only has a smallish performance hit when Lumen Global Illumination is enabled, but when I looked up the helldivers engine, they outright cite its discontinuing for, “not being able to compete against UE and Unity.”

Edit: the engine is Autodesk Stingray, since I failed to name it.

Edit 2: apparently Helldivers 2 was in production since before Stingray was discontinued, but still, why’d they try to put GI in such an old engine? Did nobody consider the stress a new lighting model would apply to an engine that barely existed before the idea of GI?