During the road to PS5, that Mark Cerny presented (video that was supposed to go to GDC) it was explained that PS5 SSD have a throughput floor of 5.5GB/S and for general load and considering compression it would average at about 9GB/s with theoretical ceiling of 22GB/s.
From some research on the tools used for the compression/decompression seems like the limit for Kraken is a little over 17GB/s. That certainly will need heavy optimization and we should see that by end of gen imho. And who knows, perhaps Kraken can be updated with firmware to reach that ceiling Cerny talked.
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."