Question about Imac pro SMBIOS and IGPU Setting

Hi, I recently built a Hackintosh with a gigabyte 390 M, i9 9900k and a Vega 56 Graphics card.

After I installed Mojave, I still had problems with restart/shutdown (kernel panic) and USB 3.0 Ports.

So I downloaded the Kext, config file dsdt patch and ssdt file from 2 different people who also had the same motherboard. Everything seems to work perfectly now. :)

So the guy whom I have the dsdt patch from has a GFX0 to IGPU setting in the config.plist and probably in the dsdt patch. But I don't want that because I wanna use my vega 56 for encoding ( I have the Imac pro smbios) in Fcpx.

Will it make a difference If I don't delete the config and just disable the internal graphics of my CPU?

I tried to delete the settings, but then Mojave doesn't start up again. So I just left it like that. Now I'm worried that maybe the Vega GPU isn't fully utilized.

Thanks