It is highly recommended to use the RPCS3 Patch Manager to enable "Disable MLAA" and "Disable Motion Blur" to improve performance. to your PS3?
This is the standard method for playing the game on a console using a PKG file. god of war ascension pkg
: Ensure your PS3 is running a compatible custom firmware (CFW) or PS3HEN to allow PKG installations via the "Package Manager". Installation Steps Transferring Files : It is highly recommended to use the RPCS3