If your Android Smart Phone is running on Quad Core and still finding it slowing down or the battery dies out faster than the manufacturer promises it would, you should delete this one App on your gadget. By just deleting this one app, a lot of Android phone users have reported that they can speed up their phone - and extend their battery life for as much as 20%. Sadly, this one app is very essential to almost all Smart Phone users – Facebook! Deleting this App might gonna be a problem in almost all of us. Thankfully, there is a way round it - and it seems to work on many models of Android handset. Russell Holly, an Android Central writer was the one who first noticed this trick– but has since been tested by various Redditors and tech writers. According to Holly, "Recently I noticed some performance issues on multiple phones, and had started paying closer attention to what exactly was causing these problems. When Facebook turned out to be one of the more egreg