Means it takes 20-30 seconds to display the password prompt and afterwards it takes again more than 1 minute to mount that disk so that TimeMachine can start with doing the incremental backup. So every thing went well for some weeks even months but from time to time the mounting will go slower and slower.
The TimeMachine disk is formatted to APFS encrypted (the time machine setup looks like can only format in APFS and I think doing backups makes only encrypted sense). I actually have a really similar problem with my TimeMachine HDD, it will getting slower and slower from week to week.Ĭurrently I using a Lacie Rugged USB-C 4TB external HDD for my TimeMachine Backups.
