You need a fast drive, that is connected to a fast bus system, to really benefit from it.

In my PC I have a PCIe 4.0 Nvme SSD with 3,5GB/s read speed.
Not as fast as the PS5 one (5,5GB/s). But thats alot faster than anything that is connected via SATA or something similar (with some luck here you have some hundred MB/s).

With that the difference is huge.