[Shipper Pro] How does Shipper work exactly? Why does it take so long?

I decided to try Shipper Pro to move a development site demo.osyc.com live to http://www.osyc.com and was shocked to see that the estimated time was 7 to 11 HOURS for the transfer. The two sites are on the SAME DEDICATED SERVER.

The site is less than 600 MB and I’ve usually moved sites like that in about 30 minutes total using duplicator or even just manually copying the files and database and then using search and replace to fix URL’s.

Just wondering if this is a glitch or if Shipper Pro is really this slow.