PS4 download is super slow

Whenever you're downloading on PS4, it's a good idea to restart your system from the power menu first. Due to how the PS4 manages memory, it seems that it doesn't always release suspended or closed down apps, and this slows downloads and installs.

It has gotten a lot better in the past few years, but I'm still in the habit of performing the restart any time I have a time-sensitive update coming, and it does seem to help in a lot of cases. 

From my PoV it took about 40 mins to install on my PS4 too.