It depends on the server you're playing on. If they're using a non-standard protocol or P2P aspects on their traffic, we may see it as P2P. In that case it would be shaped.
Are you running any background services though which may be shaped, like a torrent or a download. Perhaps that is affecting the QoS and when you turbocharge it removes those restrictions?
No all my downloads where switched off the run on a schedule for after 12.
As far as i know it uses standard TCP/IP protocols. Only other bandwidth using program that was running was team speak.