Inspirired by from :iconburritorat2:
Only applies to Iray mostly
PS: I'm by no means an expert in DAZ3D and I'm speaking from my experience.
1. Faster Renders
1.1 Activated OptiX Acceleration
I didn't know about this until 1 year into DAZ3D. It basically makes your renders 50-100% faster if you have a Nvidia GPU
1.2 If you activate Iray Preview mode and wait until the grey turns into the iray preview, it will start to render a lot faster than when you just hit render out of Texture Shaded Mode. I'd recommend saving the scene before you do that though, as DAZ3D crashes sometimes using this method.
1.3 For some reason when you disable the CPU and let it only render on the GPU it is somewhat faster or only a bit slower than GPU and CPU. You'll also be able to do other stuffs likes browsing the interwebs while rendering. This only works if you have a Nvidia GPU.
You could also lower the CPU cores used by DAZ3D