Hi, first of all I own a 64 GB wifi only iPad. It's jail broken and I filled it with apps and some movies and now it's at 59 GB. I have only 5 books in my iBooks library and I use the Youtube app often to download some videos. However lately when downloading a video and launching it the iPad crash and it takes about 4 minutes for it to recover back. and the video's I downloaded get removed for some reason (I think it's like recovery mode). And it's been lagging alot and Apps are crashing very often. And some time it reboot for no reason. I think it's a really bad situation however I don't want to format it. Is is the cydia apps that are causing this or the large amount of storage I have is causing this? Please if you have any useful info/advice share it with me.