According to this 2016 post, the problem is Optus and Telstra, and the costs of peering with them (scroll down to "Oceania"): https://blog.cloudflare.com/bandw

According to this 2016 post, the problem is Optus and Telstra, and the costs of peering with them (scroll down to "Oceania"): https://blog.cloudflare.com/bandwidth-costs-around-the-world/ https://blog.cloudflare.com/bandwidth-costs-around-the-world...