The primary language of choice is specified in the initial stages of the installation. However, after copying files to the hard disk, the installer connects to the Internet to download `language packs'. I do not know what they are. Depending on the connection speed, this process takes several minutes.
However, I do not see an express need for downloading them _during_ the installation, if at all! Once the installation is completed, the user can certainly download additional language packs, and install them.
Remove this step from the Ubiquity installer for LM. Let users download and install additional language packs, as needed, after booting into the OS post-installation.
Remove downloading language packs during installation