System takes longer to start due to "flush journal" job

systemd-analyze blame
          42.110s systemd-journal-flush.service
          8.420s apparmor.service
          3.710s SuSEfirewall2_init.service
          3.019s ModemManager.service
          2.930s dev-sda2.device
          2.745s colord.service
          2.441s display-manager.service
          2.291s libvirtd.service
          2.103s rtkit-daemon.service
          2.101s postfix.service
          2.035s var-lib-mysql.mount
          1.774s systemd-fsck@dev-disk-by\x2duuid-161ab58c\x2d05a1\x2d48f7\x2d95
          1.765s var-lib-pgsql.mount
          1.764s var-lib-machines.mount
          1.662s SuSEfirewall2.service
          1.608s var-lib-mailman.mount
          1.423s boot-grub2-i386\x2dpc.mount
          1.372s home.mount
          1.232s accounts-daemon.service
          1.213s var-lib-mariadb.mount
          1.205s var-cache.mount
          1.178s var-lib-named.mount
          1.172s var-opt.mount
          1.152s var-lib-libvirt-images.mount
          1.105s ntpd.service
          1.090s systemd-udevd.service
          1.046s polkit.service
           869ms var-crash.mount
           827ms srv.mount
           814ms boot-grub2-x86_64\x2defi.mount
           793ms dev-disk-by\x2duuid-0dd6df78\x2db1bb\x2d4e86\x2db1fc\x2d586bfe0
           778ms systemd-journald.service
           706ms plymouth-start.service
           676ms var-log.mount
           573ms avahi-daemon.service
           557ms opt.mount
           539ms rc-local.service
           535ms usr-local.mount
           519ms systemd-remount-fs.service
           496ms dev-hugepages.mount
           495ms dev-mqueue.mount
           465ms plymouth-read-write.service
           442ms NetworkManager.service
           414ms systemd-user-sessions.service
           401ms systemd-logind.service
           368ms systemd-udev-root-symlink.service
           367ms systemd-modules-load.service
           348ms var-spool.mount
           322ms nscd.service
           316ms auditd.service
           304ms var-tmp.mount
           289ms tmp.mount
           276ms dracut-shutdown.service
           270ms systemd-sysctl.service
           268ms systemd-tmpfiles-setup-dev.service
           267ms mcelog.service
           240ms systemd-vconsole-setup.service
           238ms iscsi.service
           237ms systemd-rfkill.service
           176ms upower.service
           168ms systemd-udev-trigger.service
           142ms udisks2.service
           141ms \x2esnapshots.mount
           136ms sys-kernel-debug.mount
           122ms systemd-fsck-root.service
           114ms wpa_supplicant.service
           101ms systemd-backlight@backlight:acpi_video0.service
            87ms user@1000.service
            79ms systemd-random-seed.service
            58ms systemd-backlight@backlight:intel_backlight.service
            47ms packagekit.service
            43ms systemd-tmpfiles-setup.service
            26ms systemd-update-utmp.service
            13ms systemd-tmpfiles-clean.service
             9ms alsa-restore.service
             7ms sys-fs-fuse-connections.mount
             6ms kmod-static-nodes.service
             4ms systemd-update-utmp-runlevel.service
systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @57.164s
└─display-manager.service @54.722s +2.441s
  └─time-sync.target @54.612s
    └─ntpd.service @53.506s +1.105s
      └─network.target @53.469s
        └─wpa_supplicant.service @56.399s +114ms
          └─basic.target @48.746s
            └─sockets.target @48.746s
              └─virtlogd.socket @48.745s
                └─sysinit.target @48.740s
                  └─systemd-update-utmp.service @48.713s +26ms
                    └─systemd-tmpfiles-setup.service @48.653s +43ms
                      └─systemd-journal-flush.service @6.501s +42.110s
                        └─var-log.mount @5.783s +676ms
                          └─dev-disk-by\x2duuid-a3bdf827\x2dbb1d\x2d4b02\x2d9a71

Question: are there consequences for running journalctl and systemd-analyze commands as root? Or they should be run as root anyways? Please don’t ignore this question please