The performance (at least on the Pro; I gave my original to my brother) has definitely improved a lot, too. It was a slide show on the original and the pro with and without boost mode enabled for a good while after I bought the PS4 pro, but it’s not bad now. Load times suck though. I basically only made progress once I switched to PS5 and got to take advantage of the SSD. (Note that PS4 games still load way slower than PS5 games on PS5, for the most part.)