I'm copying my Macbook Pro from its startup disk (Samsung SSD) to an external hard drive (WD My Passport for Mac) on my mid-2012 MBP. Using Chronosync Express. I formatted the Passport before doing this and double checked it was in Ma Extended (Journaled) mode, etc. There is about 369 GB to transfer and we are at about 202 GB copied and it is 10 hours and 42 minutes and counting.
I understand first copies of this sort are slower than subsequent ones, but is this excessive and, if so, is it due to it being an SSD -> HDD transfer, the software I'm using, and/or something else? Thanks.