“Other” in iPad Storage

Hello! I need help reducing my “Other” in iCloud. I have 16GB on an iPad Air 2. I only have 4 apps, 2 being big platform games that barley take up 1GB each and the others not so much. I have no photos, no downloaded movies, streams, podcasts etc., yet for some reason my iPad storage is at 11.5GB of 16GB. My system is 5.44GB and 3.85GB. This is my THIRD of FOURTH time erasing my iPad then putting my backup in. This is the only method that is effect that I can tell. I clear my cache from Safari, but I don’t really have anything else to download. I have so little, how is it possible that I’ve been using more than a third of my GB? Can someone please help me?