Ubuntu GNOME 17.04 molto lento all'avvio

Buon pomeriggio, ho di recente reinstallato Ubuntu GNOME 17.04 sul mio portatile, e mentre in precedenza non avevo crittografato nulla questa volta ho deciso di farlo con la cartella home. Il problema è che ho notato un notevole aumento dei tempi di avvio, della serie che mi tocca aspettare anche 3/4 minuti. Allego comandi:

systemd-analyze

Startup finished in 6.643s (firmware) + 4.443s (loader) + 3.139s (kernel) + 3min 554ms (userspace) = 3min 14.781s

systemd-analyze blame

    8.940s NetworkManager-wait-online.service
      5.310s apt-daily.service
      4.177s plymouth-quit-wait.service
      1.858s fwupd.service
       721ms gpu-manager.service
       469ms systemd-resolved.service
       455ms dev-sda2.device
       133ms systemd-timesyncd.service
       132ms ModemManager.service
       108ms snapd.service
       103ms systemd-rfkill.service
       100ms NetworkManager.service
        95ms grub-common.service
        88ms networking.service
        79ms accounts-daemon.service
        78ms systemd-logind.service
        70ms apparmor.service
        69ms systemd-fsck@dev-disk-by\x2duuid-1F1B\x2d11F9.service
        65ms keyboard-setup.service
        59ms udisks2.service
        58ms systemd-udev-trigger.service
        55ms irqbalance.service
        52ms rsyslog.service
        50ms apport.service
        49ms ureadahead-stop.service
        47ms thermald.service
        43ms polkit.service
        43ms packagekit.service
        41ms switcheroo-control.service
        40ms upower.service
        36ms systemd-journald.service
        33ms systemd-udevd.service
        30ms avahi-daemon.service
        30ms bluetooth.service
        30ms systemd-modules-load.service
        29ms colord.service
        27ms speech-dispatcher.service
        26ms systemd-tmpfiles-clean.service
        25ms systemd-tmpfiles-setup-dev.service
        23ms user@120.service
        23ms user@1000.service
        22ms geoclue.service
        19ms pppd-dns.service
        19ms alsa-restore.service
        19ms systemd-tmpfiles-setup.service
        13ms plymouth-start.service
        13ms wpa_supplicant.service
        12ms resolvconf.service
        12ms plymouth-read-write.service
        12ms boot-efi.mount
        11ms dev-hugepages.mount
        10ms systemd-backlight@leds:dell::kbd_backlight.service
         9ms sys-kernel-debug.mount
         9ms gdm.service
         9ms console-setup.service
         8ms dev-mqueue.mount
         8ms systemd-sysctl.service
         7ms snapd.autoimport.service
         5ms systemd-backlight@backlight:intel_backlight.service
         4ms systemd-remount-fs.service
         4ms systemd-journal-flush.service
         4ms systemd-random-seed.service
         4ms systemd-update-utmp-runlevel.service
         4ms rtkit-daemon.service
         3ms systemd-user-sessions.service
         3ms kmod-static-nodes.service
         3ms systemd-update-utmp.service
         3ms ufw.service
         2ms setvtrgb.service
         2ms swapfile.swap
         2ms snapd.socket
         1ms sys-fs-fuse-connections.mount

Sapete come aiutarmi?