Long loading times for Odyssey?

I've noticed that the loading times for Cutscense in Assainsin's Creed Odyssey take too long 30 seconds and that's kind of weird and wants to know how to speed up the loading times of Cutscense or if there are any tips

° Play games on the Playstation 4 Slim

° Still 200GB free space

The most effective method would be to replace the built-in hard disk with an SSD.

Unfortunately, I can't tell you how big the time advantage of booting and games is, since the PlayStation seems to use only a SATA 3 GB / s interface.

Would an external hard drive via USB synonymous good?