Chat far too quiet on IPad

I finally got TS3 to run on my iPad mini yesterday, but the Chat is far too quiet. I pulled up every Level in TS and in the IPad-settings to the absolute max, still, it’s not possible to understand my Team in-game. Both my Android and PC Versions don’t have this issue and i even could level up every Member of my Chat individually. I did not find an option to do so on the iPad yet. Like that TS is just not usable on the iPad. Does anybody have a solution for this?