Hello Nick,
See this thread https://forums.zwift.com/t/slow-walking-on-zwift-can-i-make-it-happen-update-treadtracker-can-so-can-treadmill-speed-transmitter-app/83696
I have a walking treadmill under my stand up desk. The footpod doesn’t track well under 3 or 4 mph, which is faster than I can walk and still concentrate. The treadtracker add-on bluetooth device works, but more than I want to spend. I just walk and don’t track any of it.