I should really take some time to try the PS3-emulator. this looks hella good and I have so many titles I loved on that system
When it works, it works very well, Virtua Fighter 5 runs at a locked 4K 60fps for me (9900K (5Ghz) & RTX 2080) & Demon Souls II, the same & without any (That I've so far noticed) graphical glitches.
But they are the exception, most titles I've tried struggle to do that, Sonic Unleashed for example will run between 40-60fps, not ideal for a Sonic game and most other games that I've tried have graphical glitches aplenty.
I just thought I'd give it try as an experiment and now its all set up on my rig, ready for future updates, this my setup: