For a while i've used an internal HDD hot swap slot on my computer case to make backups, i have just over 1TB of data to backup which i usually get done in about 2 hours while i go off and do other stuff.
I'm about to get a new computer and will unfortunately lose the hot swap slot, so i've been experimenting with an external drive which at the moment is going to take more than 1 day to finish, which needless to say is unrealistic.
I've changed the policies to favour performance, and it starts very fast but gets very slow over time probably due to the large number of folders i'm trying to backup, i guess the answer would be to back it up in smaller chunks but that sounds rather tedious, i may be forced to open it up and insert the internal drive every time i want to backup unless there's another solution.
Why is this still a problem in 2019?
Do any of you use backup programs? Do they do a good job of keeping the process fast? Is there another solution that i am unaware of?
I don't have enough data to require a NAS.