Update Speed incredible slow

Hi,
I was just setting up a new Mac with Catalina and try to update from 8.3 to 8.4.1.
Download Speed via internal updater is incredible slow 3 seconds for 0.1MB.

Cheers Maik

Even downloads from here are slow https://www.realmacsoftware.com/rapidweaver/releasenotes/ , is anybody else experiencing this?