For some strange reason a users OneNote in his iPhone is super slow in pages that have lot of data. This problem has never occur and the user has a bunch of pages clogged with data and always OneNote has need working optimum.
Today we noticed the user typed and the characters were super slow to appear the pages with lots of data (FYI there is no images in these pages just typed data and links) - below is a vid of said problem. However in a new page or a small or regular page contents, typing is ok.
What can be going on? Please advice.