Best backend and sound library for moviestim3 video presentation

Hello everybody,

I have created an experiment in which videos are presented in a loop using MovieStim3. I would like to optimize the synchronization of image and sound material in the videos as much as I can. I am not even sure, if I can actually influence this with the python code. But, I am wondering if you can tell me if it is advisable to load any specific backend or sound library? Or does this not influence the was MovieStim3 will work?

Thank you for any information,
Juliane