I have lag issues on my iPad mini. I headed over to apple support service to resolve the same issue and they suggested me to do backup and restore. I have few games installed on my device which are above 1gb in size. I backed up my device using iCloud, the size was only 17 mb. So i want to know that when i will restore from this backup after reset, will i get all those big sized apps back or i have to redownload those gb's of data again?