When you deploy a project by using the CatalogFolder.DeployProject method in an instance of SQL Server 2014 or SQL Server 2012, the publication takes longer time than expected to be complete. Additionally, the publication may cause lots of network traffic.
This issue occurs because the CatalogFolder.DeployProject method retrieves all the data from the internal.operations table.
To work around this issue, use the Transact-SQL stored procedure catalog.deploy_project when you publish projects.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.