Sloooow Boot on new install in an older Windows laptop

Hello all, new guy here, and relatively new to LINUX. Just installed Lubuntu 24.04.1 LTS from USB onto older WIN-10 laptop - did a complete clean install from the USB (was verified and authenticated), no dual boot.
Did all the upgrade steps on install.

Was booting fine using Windows (2-3 min reboot). Has SSD.

VERY slow to boot up into desktop. I get the initial BIOS option screen for few seconds, then blank/black screen that lasts a long time, over 5 minutes just blank screen, sometimes a cursor in the top left corner, not always… eventually does boot into desktop, and functions normally. I’ve tried to use power buttons (both resetart and shut down) from the screen, and have also done the physical power button forcing a shutdown - no difference, still very slow.

If you give me suggestions, please explain how to run it (I’m new to LINUX). Thanks for helping.

After it finally boots, try:

systemd-analyze
systemd-analyze blame
systemd-analyze critical-chain

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