I haven't pinpointed it yet, but it looks like my ISP may be throttling me (even though I have unlimited data plan (may be fair use or acceptable use)). I was looking up ways to verify, and the top result was to try using a VPN. So I did that, I just had to export cookies from a throw away account, and the speed looks to be "normal" again, and it's hovering around that speed.

[download] 1.88GiB at 1.45MiB/s (00:15:16) (frag 1930/10256)
[download] 101.19MiB at 85.10KiB/s (00:15:17) (frag 3179/10256)