I have an original PS4, running the latest firmware, and I bought the game today digitally off the PSN store...
In a total of around 2 hours of play, I experienced a lot of slowdown, some momentary freezes, some slightly longer freezes, and 4 crashes ... only one of which allowed me to send an error report, and one of which totally locked up my PS4.
Contacting Sony (after the first 90 or so minutes of problematic play and the first 3 crashes), they advised me to rebuild my PS4's database, which I did, before experiencing another half hour of freezing and slowdowns, followed by the 4th crash.
Getting back on the phone to Sony, I was told to delete the game, re-download it (using a difference connection if possible, as if that would make a difference smh), and then play it again, taking photographs of all the issues and then send them the photos.
Then, talking to them again on social media, they told me to contact Focus, which I did, and then they asked me to post it all here.