I just ran a couple of experiments and the results might be interesting.
I tried browsing the forum on my iPhone 5s. When connected via wifi to my Actiontec router (good connection...I see ~38 mb/s up and down on a speedtest) I had the same issue...pages taking forever to load.
I turned off wifi and reverted to at&t LTE for data and pages seemed to load much faster.
I went a step further, left wifi on the Actiontec off, and created a personal hotspot on the iPhone. I then connected my Win 7 laptop to the personal hotspot and went to the forum. Again, pages were much faster. I get much faster loads on the laptop when connected to the iPhone's hotspot than I do with that same laptop connected via Ethernet to my router.
Seems like the problem may be somewhere in Verizon's own routing to the Lithium server(s).
For whatever it's worth.