Late to the party but in your logs in the OP, the logs are full of range requests for the same file. This is exactly what will happen when a file is badly multiplexed. Basically the client has to skip back and forth in the same file to read the video and audio because they aren’t located next to each other. The way this is done when a client is playing over HTTP is to abort the connection and create a new request starting at a different point in the file. Your logs have 10s of these per second which is responsible for your issues.
