I'm booting a live persistence Kali version 2020.1b in a MacBook air.

As the kali.org instructions says, first I check
Souces.list and make sure they are updated.

Then I use the following command

Sudo apt update && sudo apt full-upgrade -y

This is taking a lot (I'm at 3% and running for 25min so far) is that normal?

Thanks in advance!