jlbosch78 The settings has special . This is working only in 5.15 version for now .... :
I have set :
Graphics API : OpenGL
mode: buffered rendering
Simulate block transfer effect (no)
software rendering (no)
Leap of pictures: 1
automatic frame skip (yes)
force 60 FPS or less (help in God Of War) (yes)
alternative speed = 115%
post processing shader - none
full screen (no)
2xPSP rendering resolution
hardware transformation (yes)
Software Envelope (yes)
cache vertices (yes)
lazy texture cache (fast) (yes)
retain modified textures (no)
disable slower effects (fast) (yes)
Belzier curve quality = High or low
Hardware tesselation (experimental) (not)
Scale level: disabled
type: XBRZ
To dispossess (not)
Anisotropic filter: Disabled
Texture filter (auto)
Screen Scale Filter: Linear
Timer Hack (yes)
Disable stencil test: (no)
Reduce effect resolution (reduce artifacts) - Disabled
Show FPS counter: (Both)
Now go to the "system" tab and change the following option:
"Change CPU clock of PSP = 80"
Then go to the "Controls" tab and map buttons:
Down to the "Another Speed" button and set a button for it (I set L3, since it does not even exist on the PSP)
Save Game Settings.
This way, when you play it will be flowing, however, if it is slow on some occasions (where it has more effects), you can press L3 and the speed will try to achieve what you have defined (115% or more according to your configuration in that parameter)
Detail that this setting only solved for God Of War: Chains Of Olympus (for the other God of War, nothing done!)