Comment 2 for bug 1930880

And result of systemd-analyze:

1h 10min 36.589s casper-md5check.service
    6min 25.653s ubiquity.service
    2min 18.423s plymouth-quit-wait.service
     2min 1.331s snapd.seeded.service
    1min 36.987s networkd-dispatcher.service
    1min 26.938s apport.service
    1min 25.643s snapd.hold.service
    1min 23.503s ModemManager.service
    1min 19.831s bluetooth.service
    1min 19.569s packagekit.service
    1min 11.968s rsyslog.service
     1min 6.454s gpu-manager.service
     1min 2.006s NetworkManager.service
         57.190s cups.service
         49.711s accounts-daemon.service
         40.643s dev-sr0.device