This is a third party plugin so you'll probably get better help if you report it to their repository here: https://github.com/lmsace/academi/issues. If anyone around here knows how to help, go ahead .
It looks like they already have some issues opened about the slider in mobile, like this one. Maybe you can mention it there if it's related.
Although, looking at the repository, it seems like this hasn't been updated for months. But you'll have to reach out to them for more info.