pkg mirrors extremely slow, why not use the ftp mirrors?

[Martin Hanson]

I'm on a gigabit connection in EU, using the "pkg0.bme.freebsd.org" is horrible:

[1/22] Fetching unibilium-2.1.0.txz: 100%  120 KiB 123.1kB/s    00:01    
[2/22] Fetching tmux-3.0a_1.txz: 100%  305 KiB 312.1kB/s    00:01    
[3/22] Fetching smartmontools-7.1.txz: 100%  444 KiB 454.6kB/s    00:01    
[4/22] Fetching samba410-4.10.13.txz:   2%  840 KiB  49.2kB/s    01:18 

But I get similar very low speeds on the other mirrors as well.

Why are not all the old http:.//ftp.*.freebsd.org mirrors used for pkg?

They are still all up and they are way faster!