Tablo network connected DVR network remote connection path

I’m wondering if anyone can tell me how the connection is built when watching remotely? Is is a direct path to the dvr, or does it pass through Tablo’s network?

I have a remote dvr in California on a Spectrum internet connection with 600mb down and 24mb up. On my local end I have 300mb down and 25 up. Those measurements are consistent.

It would seem that the 24mb up on the remote end should be fine for watching full resolution without buffering. But spectrum is a WAN.