Was in ISP business since early 90s, and in streaming business since before broadband, so familiar with connection profiles, latency, and effects of tuning TCP. There's a lot of lost or forgotten art being reinvented or rediscovered for today's mobile.
Closer to 100ms and, more importantly, constant not variable.
Mobile is high bandwidth when an EDGE connection might pull 110 Kbps when the rural user is lucky?
The fastest modems sold were 56kbps.