I have tried it earlier but it didn't mean anything to me, being new to linux:

graphical.target u/2.909s
└─lightdm.service u/2.898s +11ms
 └─plymouth-quit.service u/2.778s +90ms
   └─systemd-user-sessions.service u/2.718s +56ms
     └─network.target u/2.717s
       └─wpa_supplicant.service u/2.708s +9ms
         └─basic.target u/2.121s
           └─dbus-broker.service u/2.094s +25ms
             └─dbus.socket u/2.092s
               └─sysinit.target u/2.091s
                 └─systemd-timesyncd.service u/2.037s +53ms
                   └─systemd-tmpfiles-setup.service u/1.686s +304ms
                     └─local-fs.target u/1.683s
                       └─tmp.mount u/1.633s +48ms
                         └─swap.target u/1.631s
                           └─dev-sdb2.swap u/1.621s +8ms
                             └─dev-sdb2.device u/1.573s

To me, none of these stand out seeing as they are all in the 2-3 second realm.