The the iOS FaceBook app SUCKS.
I have iPhone 5 so it's not my phone lacking in processing power to handle the app. But the app crashes and freezes on the news feed, the pictures freeze in mid animation when you swipe up to close out the picture. FaceBook needs to release a update patch so the app will run smoothly like the past FaceBook apps have been.
Do you have same problems? It even happens on my iPad 4 also