Man, I thought it was just me. It's not the app - it's something more global. I use my phone (Verizon) as a mobile wifi hotspot, and the site (browser or app) does the same thing on my phone, my iPad, my laptop, anything. It's regardless of browser, OS, anything. But, I've never had any trouble with the site on my work PC that's on the work network.
Most of the time it either won't load the site at all, or it will hang at 10% and maybe load after 2-3 minutes. Occasionally it will work like gangbusters for about 30 seconds, but then quit working. It's bit me in the field as well!!
Devs, this site is fantastic, and like others, I'm totally addicted. If there's any way to remedy this, I would be hugely grateful! Maybe the host could reset/refresh some stuff?