Every time I try it, I'm surprised at how fast it creates the ISO, . It's very fast.
Only missing, that you could create a script like in the other versions called: PC Packed
Are you fabs from Fab's AutoBackup?
Maybe you can give a try with the Full Install.wim Software registry Hive.In Build Core, there is a tiny button, a little hidden at bottom right, to show advanced build options.Enable "Use Full Win10 Software hive" and try with your Apps.
thanks for your WinPESE tuto on your site
try also with Full Install.wim wbem