My Ubuntu was initially very slow when I installed it. Now, I went into recovery mode and updated all the dependencies. Boot time has significantly improved but there's still some issues which I think is delaying the boot
I'll share my boot logs here
OK ] Created slice system-systemd\x2dbacklight.slice.
Starting Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight...
[ OK ] Finished Flush Journal to Persistent Storage.
[ TIME ] Timed out waiting for device /dev/disk/by-uuid/76B4-3651.
[DEPEND] Dependency failed for /boot/efi.
[DEPEND] Dependency failed for Local File Systems.
[DEPEND] Dependency failed for File System Check on /dev/disk/by-uuid/76B4-3651.
Starting Load AppArmor profiles...
Starting Set console font and keymap...
Starting Tell Plymouth To Write Out Runtime Data...
Starting Create Volatile Files and Directories...
[ OK ] Started Show Plymouth Boot Screen.
[ OK ] Started Forward Password Requests to Plymouth Directory Watch.
[ OK ] Reached target Local Encrypted Volumes.
[ OK ] Finished Set console font and keymap.
Starting Load/Save Screen Backlight Brightness of backlight:intel_backlight...
[ OK ] Finished Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight.
[ OK ] Finished Tell Plymouth To Write Out Runtime Data.
[ OK ] Finished Load/Save Screen Backlight Brightness of backlight:intel_backlight.
[ OK ] Finished Load AppArmor profiles.