Just realized sometimes apps hang on to my iPhone's RAM after they are closed and it really slows things down. I thought the only way to clear the RAM was to reset phone but nope there's a much faster way. All you gotta do is
press and hold your iPhone’s power button until the “Slide to power off” bar appears.
DO NOT POWER OFF YOUR iPhone. Instead….
Release the power button and now press and hold the home button for five seconds until your home screen comes back on. Your RAM will now have been refreshed and your iPhone should be much faster.