[PS4/XB1] Long Loading Times Entering The Game

8th generation consoles are deliberately being throttled to try to get you to buy 9th generation. Even though Sims 4 is not optimized for 9th Gen, it still loads 10-20 minutes faster (ie, 2 minutes vs 12-20 minutes).

You can ***sometimes*** load less than 10 minutes on xbox one, but you have to jump through many hoops that may or may not work. My experience with xbox one (and I assume pS4) shows that they want you to abandon Gen8.