Is your PS4 running slow? Here are some fixes you can try
Best answer: There are a few different steps you can try to help clear up lag on your PS4, which include clearing the items on the home screen and closing programs that may still be running. Without knowing exactly what is causing your lag, the best and safest thing to do is start with the easy fixes and make your way through until one works for you.
Extra space: Seagate Game Drive for PS4 Systems 2TB External Hard Drive ($80 at Amazon)