My background is dev, I only know basic networking. But
those numbers look odd to me.
Then perhaps a fresh install and "only" pfSense and some
rules set up will be the best starting point for you. If then
something went wrong it is better to find out or narrow
down to a special point. Snort and pfBlocker-NG will be
also not real "set-it-up-and-forget-it" applications and
this also not for very experienced users.
Home routers maybe sorted with some small ASICs and running (acting) therefore a bit more faster, also Linux is
a few bit more liquid and smooth running on the same
hardware as FreeBSD, it also comes with much more
hardware and better driver support for many different hardware. So it is not the same running Linux and/or
FreeBSD based systems on the same hardware.
My suggestion to not run in a "many-problems-but-what-is-it-searching" loop, fresh install, configure it out, and then if all is fine start the next packet installing and again
configure it out, .........
So the forum might be best able to help you, owed to the different sections you maybe point your "problem" or question in.