We have a SCCM 2012 R2 environment and will be using thumb drives for OS deployment. Using the thumb drive method is a big hassle and time saver versus going over the network, but I'm looking to optimize the process as much as possible. I've noticed that with many package installs, SCCM will sit on "Building list of programs to run from package" for several minutes before actually installing the application. In some cases it seems excessive.
Any advice on how to speed up these step between package installs?