Do the leg work on your end by studying the position you will be training for before training, to the best of your ability. The speed at which you advance is based solely off the knowledge you have going in and your ability to implement new things you learn.
Meet the trainer half way and watch the tutorials, ask questions, practice on your own. Review the following:
Be prepared and make the process smooth. It is so refreshing to meet someone who puts in the effort beforehand. Going in halfway isn’t going to get you far.