Fine tune playback speed

Hello! I just started Rocket Korean 2 days ago and found the normal audio playback speed (1.0x) a bit slow but the next speed up (1.25x) is way too fast for a complete beginner like me. 

Is it possible to adjust the playback speed with finer increments, for example: 0.8x, 0.9x, 1.1x, 1.2x? I would just like to speed it up a tiny bit to match my concentration level.

Since the speakers breakdown and explain the sentences anyway, I don't really need it to go slower, but unless I'm completely fluent and just revising, I don't see the purpose of playback speeds greater than 1.25x.

Hi robato,

Thanks for your feedback on the course.

We appreciate your suggestions as we are always working on improving the course. I have passed your comments on to our Product Development team for their consideration.

Kind Regards.