The most time spent during apply is during packet rebuilding.
Unfortunately, there is no feedback from the drone to know the actual
progress, so this is just a busy indicator for now.
I tried to put a jump url to the FAQ on why it takes time, but 'coz the
app cursor is a "wait cursor", user cannot click on any widgets/elements
inside the dialog box - so this won't work.
Iterate on this dialog and what it displays based on user feedback.
