I’m not sure what you want to do. If you need lumen to look like it needs to look it requires the hardware to work with.
you can’t have one without another. the GPU does certain things that lumen needs. because older hardware doesn’t have the chip logic inside lumen can’t do that stuff. If you have a normal car you can’t go compete in the formula one competition.
is why I was asking what you want to do. You want your games to work on older hardware. fine. by the time you add a door, some objects textures, other stuff like that, that issue will be less visible
you want to create high render visualization for architecture or film production. you need better hardware.
for me is obvious 