@Ish Fantastic idea! We will share with the product team ASAP. File reduction completely makes sense in this instance, especially if you are downloading them. Are you using the enhanced recording with web playback as well?
At this moment we are on the standard profile which has upto 5 hours recording limit, we are though looking to upgrade to enhanced i the future. Hope adding a 4th option audio + presentation does get added in the future. Thanks Ish