Are you downloading Blockchair dumps at the slow rate?
Yes. But 100 kB/s isn't a problem anymore: the initial download took a long time, but for daily updates it doesn't take that long.
I just contacted Blockchair for an API key, which enables people to download at the fast rate, and a support rep told me they cost $500/month.
I thought they'd offer it for free for certain users, but this makes sense from a business point of view.
If network bandwidth is a problem I'm able to host this on my hardware if you like.
Just this month I'm at 264 GB for this project, and 174 GB for
all Bitcoin addresses with a balance. That means this full list is only downloaded a few times per month, but the funded addy list is downloaded a few times per day.
I'm more in need for more disk space for sorting this data, but I haven't decided yet where to host it. 100 GB disk space isn't enough.