我必须删除哪种类型的服务才能解决挂起问题？
13.373s dev-sda1.device
7.966s NetworkManager-wait-online.service
6.422s systemd-udevd.service
5.688s grub-common.service
5.648s irqbalance.service
5.595s ondemand.service
5.390s lightdm.service
5.357s apport.service
4.212s accounts-daemon.service
4.132s ModemManager.service
4.025s systemd-tmpfiles-setup-dev.service
3.728s NetworkManager.service
2.975s thermald.service
1.656s keyboard-setup.service
1.232s systemd-journald.service
1.169s systemd-modules-load.service
1.108s systemd-tmpfiles-setup.service
1.101s sys-kernel-debug.mount
1.100s dev-hugepages.mount
1.099s dev-mqueue.mount
924ms apparmor.service
759ms plymouth-start.service
541ms ufw.service
489ms kmod-static-nodes.service
478ms udisks2.service
400ms systemd-rfkill.service
383ms systemd-sysctl.service
366ms systemd-tmpfiles-clean.service
355ms polkitd.service
317ms console-setup.service
315ms avahi-daemon.service
314ms systemd-logind.service
293ms networking.service
292ms gpu-manager.service
289ms pppd-dns.service
287ms ssh.service
282ms systemd-update-utmp.service
278ms rsyslog.service
239ms upower.service
190ms systemd-journal-flush.service
144ms setvtrgb.service
124ms dev-disk-by\x2duuid-4a8c3f60\x2d1884\x2d4b32\x2da561\x2dea49c08
120ms systemd-remount-fs.service
106ms snapd.socket
91ms systemd-udev-trigger.service
81ms plymouth-read-write.service
60ms binfmt-support.service
52ms colord.service
19ms [email protected]
18ms wpa_supplicant.service
17ms alsa-restore.service
13ms snapd.autoimport.service
9ms systemd-user-sessions.service
8ms dns-clean.service
7ms proc-sys-fs-binfmt_misc.mount
7ms systemd-update-utmp-runlevel.service
6ms systemd-backlight@leds:dell::kbd_backlight.service
6ms systemd-timesyncd.service
5ms rc-local.service
5ms systemd-random-seed.service
4ms resolvconf.service
4ms ureadahead-stop.service
3ms rtkit-daemon.service
3ms sys-fs-fuse-connections.mount
2ms plymouth-quit-wait.service
2ms systemd-backlight@backlight:intel_backlight.service
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