Add the ability to choose Mirror by country during the installation
Manjaro has many mirrors across the globe, but usually only those mirrors locate in the same country of the user is fast enough. Take me for example, I live in China. Every time after I installed Manjaro, the first thing I do is: sudo pacman-mirrors --interactive , and pick mirrors locate in China, otherwise pacman becomes so slow it's unusable in most of the time.
My suggestion is adding a new page in the installer with the following options:
Manjaro Software Repository Mirrors [ ] Use default mirrors [ ] Detect and choose the fastest mirrors for me [ ] Let me choose from the following region: -- COUNTRY LIST --
This will save new users a lot of trouble.