Out of curiosity, I searched for how State of Decay 2 is doing with just SATA 3 SSD (0.5GB/s only compared to 2.4GB/s on XSX):
Here's his description:
After seeing how the new xbox loads this game and alos to see how a new pcie or pci mini ssd could factor in on how fast the game loads right now 19 seconds is how long it takes to load in and that is not too bad yet there is always room for improvments.
His build specs:
So
51sec on X1 with 0.05-0.1GB/s HDD,
19sec on PC with SATA 3 SSD with a speed of 0.5GB/s, and
11sec on XSX with 2.4GB/s SSD. So XSX is only 0.7x faster than a PC with SATA 3 and DDR3 ram and weak, outdated specs PC with all the bottlenecks known on PC's.
If anyone got a problem with that, try contacting the guy, don't kill the messenger.
EDIT: Checked the video again and it's 11sec vs 51sec on X1, 4.6x faster.