@dankcushions said in not full speed at some psx games on Rb pi4:

you can either wait for the standalone duckstation core to be added to retropie, which i may work on again at some point, or you can take my word for it. either way, if you need the internal frame rate displayed to know if it's happening or not then i would say it's not an important issue...

Well, it's so interesting and i will be waiting...
In any case, thank you for answering