I have found that if the cloning process takes place on a smaller capacity drive, the process is x10 times slower. In my case, 2TB was 7 hours, but if the disks have the same capacity or the one to which it is cloned is larger, even if it is connected to the USB 3 interface, the process takes 40 minutes. Initially, I tried to clone from Kingston 2TB to 2TB Samsung 980Pro, but by default Samsung has removed 10% of the disk space for safe-mode, then the cloning was very slow and through Samsung Magician...