Nope not larger than your but I am doing a bit of spring cleaning and removing mods as I see they not being used. I disable the ones I think are not being used and if no one notices after a week I remove it. So I will most likely end up only having about 20 running at any one time. I have a few that are always disabled and I only fire them up when I need to use them
XenForo uses the Zend framework at it's core which speeds things up.
It uses the InnoDB storage engine which speeds things up.
It's code is compact and modular which speeds things up.
And probably a hundred more reasons that two coders with decades of experience have built in.
I have 2 from Snog and 18 or so others from places I can't recall, LOL I own the board and the resources manager but have yet to splurge on the gallery.