Interesting topic. isn't wwe 2k games already running at 60fps? although for example on wwe 2k14 during some camera cuts when performing moves in select arenas (that probably have more elements or crowd or whatever) there's a severe FPS drop. would these codes 'unlock' anything to help with...
Alright, I'll know now..
Guess I can share that I used and got good results with Samsung 870 Evo 1TB SSD so you'd all know there's a chance it might work.
No tests, but I believe that PKG versions simply help us to save disk space because when ISO is used then some data is installed on hard drive and it's like a duplicate.
I wrote it all here https://www.psx-place.com/threads/i-connected-my-ps3-cfw-hdd-to-pc-and-ps3-says-it-cannot-be-run-correctly.15972/page-2#post-348651
I have noticed that video signal and/or graphics is a lot better on SCPH 5000x model rather than 3000x.
I connect both consoles using the same video cable to my samsung plasma tv and 5000x models' view of browser menu is a lot sharper than 3000x.
Since I play from HDD I don't care about...