This is is what I tried guys. On the main page of your PS4 where you have all you games and apps, scroll to FIFA 19 but don't press x to start the application but instead press options and scroll down to information. There you should see Parental controls like,size, version etc....the option you look at is "download status" . You don't need to click anything you will just see the numbers(gb) moving. Mine are not extremely fast bcz of my internet but if you have good wifi I think this fixes it....but try it guys like, see if it helps....at the moment my download has slowed down a quite a bit again tho, it was moving faster but not anymore
