A small number of players have reported issues with audio being delayed when using Bluetooth headphones. 

We have not been able to reproduce this issue so far, but a potential workaround which has seemed to be successful is to start the game using speakers, and then switch the audio device to the Bluetooth headphones again once the game is up and running.

Please get in touch at support@doublefine.com if this workaround is unable to solve your problem.