If you are trying to speed up your Android phone, you should consider uninstalling Facebook! You can read more about that phenomenon for instance here : https://www.reddit.com/r/Android/comments/42kyph/uninstalling_facebook_speeds_up_your_android/. To be honest my phone is much faster after removing Facebook.
After uninstalling Facebook, you might looking for replacement. There is a application called Face Slim [1]. Maybe it is not perfect, but if you only view posts on Facebook and put comment occasionally, it might be totally fine.
Recently I installed this application on Samsung Galaxy S3. After running it, I found that I am not able to login due to bad rendering of login screen [2]. Only what you need to do, is clearing UA (User Agent) settings in application.
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