As I already wrote what matters is propagation between miners which is already very fast, even according your own link, which examins propagation throughout the network as a whole not between miners specifically.
This news article doesn’t tell me anything other than if you have a few state of the art computers geographically close all connected to a state of the art internet connection they will maybe be capable of mining 1gb blocks.
If that’s your idea of research, best of luck to bcash.
