Manuel Bucher

Notes reading through RACK: * [1.2 Motivation](https://datatracker.ietf.org/doc/html/rfc8985#section-1.2) mentions > If the reordering degree is beyond DupThresh, DupAck counting can cause a spurious fast recovery and unnecessary congestion window reduction. To...

@martinthomson What do you think about adopting RACK to fix this issue? As far as I can tell this has the highest impact to our upload speed problem. With #1475...