Earlier quoted context omitted.
It's an i3 with AMD Radeon 6470M, I was thinking of using https://babluboy.github.io/bookworm/ as a library for PDFs but I think I'd rather stick with hackintosh on it(older macOS version/Mountain Lion) & simply use iBooks as a library for on device PDFs, since Preview is decent enough for my needs
I'd recommend you try out GNOME and use Foliate as a library manager. I tried using iBooks for a bit but it just didn't hold up to my expectations.
Thanks will check it out