Short of some ftl shenanigans, there’s not much that can be done with respect to the lightspeed nature of telecoms. Even if it were a direct path around the Earth’s surface. 6,371km radius 2pir gives a distance of 20,000 km from Aus to the UK, ish, which at 299,792 km/sec is 0.0668s in 1 direction or 0.133s round trip, so the absolute minimum ping the universe will allow an Aussie based on the non-existant direct path from oneside of the planet to the other is 133 ms. That’s ignoring any routing (increases distance), the signal being converted from light to electrons (which would be both non-instantaneous and drastically lower the signal travel speed) and any “network management” (deliberately adding in a pause) or things generally being clogged up at any point in the journey or bbeing sent on a weird-arse route.