Why are the package updates so slow?

Following the "latest" in my package settings, I have noticed that
Firefox, just as an example, got updated to 106.0.2 on Tue Oct 25
19:52:18 2022 +0200

Now, five days later, Firefox in packages has still not been upgraded,
and it is running 106.0.1.

I know that in this example, it's not an important update, but as I
understand it, the FreeBSD build machines are running Poudriere and as
such, packages get updated automatically.

Why doesn't this happen more often?

And what if there is a security issue? Is it then following the same
"slow" process?

Thanks.

Kind regards.