TCP often fails to saturate network links because it treats packet loss as congestion. TCP-BBR tries to model the network more accurately, treating latency as c

TCP often fails to saturate network links because it treats packet loss as congestion. TCP-BBR tries to model the network more accurately, treating latency as congestion: https://cloud.google.com/blog/products/gcp/tcp-bbr-congestion-control-comes-to-gcp-your-internet-just-got-faster https://cloud.google.com/blog/products/gcp/tcp-bbr-congestio... Tor adds additional complexities, since intermediate nodes are even more likely to be congested than the average backbone router. I don't know if BBR improves things there.