Speed of panno stitching is dependant on many factors, e.g. your computer specs and image size and number etc.
I also use a program I picked up for free called Zoner (I have version 17). It is a full fledged program and does pano.
It came up on the'giveaway of the day" site (
Giveaway of the Day - free licensed software daily ) It may be also free on their website. I pass on the GOD's offerings 99% of the time but every now and then they have a dandy freebie up for 24 hrs - what can I say, I'm a sucker for free - but it is buyer beware, way too much crap there and always have to watch for the 'extra's you don't want that come with the download. Maybe 10% of the time it is software of interest to photographers. I have maybe six specialty programs I've loaded that I have used - very infrequently. They also offer free tablet stuff, actually have used that more on my ASUS tablet.