Care to share how many peers you're connected to?
Hmm... just a sec... checking....
OK, back. 8. I'm guessing that's a default. I've not modified that part of bitcoin.conf.
As long as we're nitpicking my particular node, it may be worth pointing out that I am running it over Tor.
If you have exactly 8 connections, it almost certainly means you have no incoming connections at all. This usually indicates a network misconfiguration, such as port 8333 blocked by your firewall, or maybe in your case, it's a Tor issue.
The default is 8 outgoing, unlimited incoming. If you open the Help->Debug Window menu item, it will show the relevant information.
Running a full node over tor requires setting up a tor hidden service first. I found this tutorial but don't have personal experience with it:
https://www.sky-ip.org/configure-bitcoin-node-debian-ubuntu.html
If you just want to run from your home IP, it's as simple as forwarding port 8333 in your router to your machine running bitcoind. Once you see more than 8 connections, you will be contributing to the network.
Be advised that XT nodes have had their broadcasted IP's DDoS'd in the past, although that seems to have subsided vs the days when it was quickly gaining share. I imagine it will happen again to XT and Unlimited nodes if they continue growing.