my install times are also less than 30 minutes. most distros come with gui installers now so i use them because they usually make things easy. most all of my installs are directly to the system drive or in virtual machines using ethernet to download new packages.
i have one system with just wifi. the largest package that gets updated often is firefox and that takes a bit more time. i don't recall if that install took longer because of the wifi, but i know it didn't stretch across hours.
maybe part of it is installing to the usb? or i think one of your mageia installs was to an sd card. i haven't done extensive read and write testing, but seem to recall that sd cards were pretty slow compared to even regular usb's.
i have one system with just wifi. the largest package that gets updated often is firefox and that takes a bit more time. i don't recall if that install took longer because of the wifi, but i know it didn't stretch across hours.
maybe part of it is installing to the usb? or i think one of your mageia installs was to an sd card. i haven't done extensive read and write testing, but seem to recall that sd cards were pretty slow compared to even regular usb's.