A way I found to speed up download speed is to follow these simple steps.

1.Yold the power button on the ps4 system until you hear two beeps(make sure the system is fully turned off)

2.You will enter (safe mode) and you will see 7 options.

3. Go to the third option which is the internet one and see if there are any updates available.

5.From here you can update the system to be faster. ( NO it is not the same as updating it from the home screen )