I used to have this on my i7 4960X CPU with 64GB RAM and SSD. Having recent changed to a Ryzen 9 5950X CPU with 128GB RAM and NVMe drives, it's infinitely quicker to load!

It's common sense, but I think it's just a case of the slower hardware you have then the slower it loads based on my comparison experience. Like others have said, it is always slower on first load due to building preset database etc though, but after that they load almost instantly for me now.