I found out this the hard way. T-Mobile used to offer 2G internet speeds internationally in 100+ countries included in Simple Choice subscriptions. 2G is limited to 50 kbit/s, that's slower than a 56K modem. While this absolutely fine for background processes (e.g. notifications) and even checking your email, most websites never loaded at these speeds. Resources would time out, and the adverts alone could easily exce…
Disable JavaScript. You’ll be surprised at how most of the web still works and is much faster. Longer battery life on mobile, too.
And you'll be more secure, and you'll retain more of your privacy.
I find 'this site requires JavaScript' to be another way of saying, 'the authors of this site don't care about you, your security or your privacy, and will gladly sell all three to the highest bidder.'