It depends on the serveur workload, the traffic on the link used to transfert datas and the peering between your ISP and the server's network.
You guys all have your own internets?
not too bad.
Yes, "all of our internets are belong to you" now
even more baffling ... just did the test on a mobile phone:
2.1 download expected it to be lower its just normal because its wifi
4.3 upload ... what...? twice the download, it that even possible