ATC Bias
Enroute SY-CS. Jetstar 11 miles behind us on the same route. As we commence descent we're vectored off track and slowed down. Jetstar told to speed up and given track shortening to get ahead of us. Result, instead of being a few minutes early we are 3 minutes late and burn more fuel (spoilers out most of the way down). Not the first time its happend. Could it be ATC home town bias since the jetstar boys are based in CS?
Checked with brisbane center and the sequencing was arranged by CS approach.