I have this same issue, the download speed is throttled to under 128 KB/s on both the site and on vortex. But then I did it on my work computer and it was 11MB/s. Then I just uploaded the mods to Mega and downloaded them at 30 MB/s. I have faster internet at home than at work. How do I work around this throttling? A VPN did not fix the problem for me.
We're happy to help, but you'll need to start your own thread with the info requested in our troubleshooting article: https://help.nexusmods.com/article/92-im-having-download-issues-what-can-i-do