Create sites using Fast Site Collection feature in SharePoint Server 2016
Fast Site Collection Creation is a new feature in SharePoint 2016, that enables Site Collections to be created in a much faster way that in previous versions.
This feature actually uses a copy of a site template which is stored in the content database, with all the site’s features already enabled. If a SharePoint administrator has a requirement for creating 50 Team Sites, enabling Fast Site Collection creation is a time saver in the long run.