I have had the same issue with 3 Macbook Pros now.
My old one (Late 2013) started acting up and being slow in the preferences, and I thought it was just getting old.
Ordered a new one from Apple (MacBook Pro 13" with 2 TB Ports), but the Security Preferences Pane was just horribly slow (more than 3-4 min until it opened, and another couple of min until I was finally able to edit).
So I returned it and 1 month later I opted for the MacBook Pro 16".
Same issue, even without installing any other software. Now it takes even longer (up to 12 min, even recorded a couple of videos of that).
I tried everything (reinstalling, not using Touch ID and not even configuring it), but nothing worked. I'm returning that Macbook as well and will just keep my old one that I wanted to sell.
At least here it only takes a minute or so in total.