Why sacrifice form or function when you can have both? Swipe for Facebook is the best Facebook wrapper app out there, integrating the lightweight Facebook website into a familiar user interface that is much like the original Facebook app.
What you get is a lightweight, highly customizable, and battery-friendly Facebook app that emphasizes on user interface and user experience as much as functionality and design.
It's better in every single way. You'll feel it.
As of very recently, Facebook has decided to stop supporting Messages on the mobile website, trying to get everyone to move to Messenger. It seems this may be what has been causing the crashes for some users when they click on Messages. The developer of FaceSlim (Krysztof Grabowski) had reached out to me and shared a solution, which completely fixes the crashes. The fix is hard-coded into the app, so you need not enable any settings for this.