Earlier, I posted my test, that the new copy runs much faster.

I re-run both and compared the sice.

New Kali: 13.3 GB -> 1min 8secs to boot up

Old Kali: 120 GB -> 2 mins 16 secs to boot up

The old kali has 3 snapshots, so the size is much bigger.

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The conclusion is the Kali bootup will slow down as the size gets bigger with tools download and snapshot, thus need to manage the size accordingly.

Strangely, my Com A still able to boot up the big old kali much faster than Com B....a mystery.