I think Michael answered the best that he could, considering that he has no access to your server, or any idea what processes were running during the backup or what those processes were doing (is the server swapping? IO bound due to slow or failing disks/heavy write activity/MySQL usage? Is it CPU bound? etc etc etc). Michael tried to give you additional information to help you identify the cause, however, it seems that was unwanted.I expected a RTFM response and you didn't disappoint.