I figured it out, I have tested BCES00510 1.00 (without installing 1.03 update), after installing 1.03 update the problem gone, now God of War 3 BCES00510 boots properly. @mimimi085181 Can you try it without 1.03 update just to confirm that? Not sure if this issue count as regression, I think it is, because on real PS3 BCES00510 1.00 boots normally
It runs, but it is so much worse than playing the enhanced version for Xbox. Correct, the PS3 version is much harder to emulate due to how the PS3 works, specially the SPUs. Even on the original consoles, the Xbox 360 version ran a lot better when compared to the PS3 version. However, that requires owning an Xbox.

Setting RPCS3 God of War 3 Rx 580My Spesifikasi pc : Processor : Ryzen 5 5600xMobo : Asrock B550M pro4VGA : Rx 580 (8gb)

One of them also crashed every time at the same spot towards the end of the game. I believe this was ghost of Sparta, but not 100% sure. A quickly google search showed what setting to turn off in the emulator to fix this though. Then I streamed both ascension and god of war 3 remastered, so I can not be any help there, unfortunately.
GOD OF WAR Ascension on RPCS3 PS3 Emulator, Performance test on RTX 3060 and Intel Core i7-11800H at 4K resolutionFramerate varies from 30 to 60+FPS and upGa
In our case, memory performance will be stressed by RPCS3 in several ways: Cell emulation: SPUs access to main memory goes through DMA. This is a beastly exercise to emulate all on its own. RSX emulation. RSX memory operations fall into two major categories: Upload and Download. Upload operations include transfer of textures, shaders, and sDY7J. 298 757 219 923 435 506 592 396

god of war 3 ps3 emulator settings