The following only applies to users who may have downloaded the original MiyoLinux releases. The sources.list has been changed to "auto" in all subsequent releases.
MiyoLinux comes with the US (United States) Devuan repositories. If you're located in a country other than the United States, and your updates seem slow...you can try changing your sources list to see if it might help.
Open your terminal, and enter the following command...
sudo nano /etc/apt/sources.list
Or, open your terminal and enter the following command...
sudo leafpad /etc/apt/sources.list
In each instance that you see "us" listed, change it to "auto"; such as...
deb http://us.mirror.devuan.org/merged/ jessie main non-free contrib
Remove "us", and change it to "auto"; such as, ...
deb http://auto.mirror.devuan.org/merged/ jessie main non-free contrib
If you do change the repositories, save the changes, and make sure to run the following commands in your terminal afterward....
sudo apt-get update
sudo apt-get dist-upgrade