When Qt Installer is run first time, it takes a long time to fetch needed Updates.xml files and the metadata. CLI commands 'install' (and 'update') will thus take a long time to fetch all the files, that are not necessarily needed at all.
Suggestion is to implement the CLI command 'install' so that the components to install is searched first from defaultly enabled categories instead of all categories. If the components are found from those categories, we do not need to fetch all metadata.