When called from singapore metalink returns suboptimal list of mirrors
curl “https://mirrors.fedoraproject.org/metalink?repo=updates-released-f33&arch=x86_64&country=sg”
returns mirrors from JP, CN and HK.
meanwhile mirror from SG is available according to
https://admin.fedoraproject.org/mirrormanager/mirrors/Fedora/33
and it’s quite fast.
I’m not too sure what to do next as I don’t know how metalink works and how it chooses mirrors.
You can try
fastestmirror=True
in /etc/dnf/dnf.conf and see if that connects you to (faster?) SG mirrors. But be aware, fastestmirror measures the latency to the server, which does not necessarily correspond to download speed.
Also, I see that the JP mirrors have a bandwidth of 10000, while the only mirror listed in SG is 1000. So maybe that is the reason why a JP mirror can be faster than a mirror in SG, even if physically located closer to you.
I coded specific mirror sites and was able to greatly increase performance.