I just had some emulation woes getting godfather 2 on my deck. I did what you did but saw someone where to set gpu clock on steam at 1000 not 1600. I also went ahead and put 30fps cap so it’s not trying to do too much. These games run around 30 anyways. I also set the scale in steam as far.
Went from 11-15 fps to stable 30 with dips into 28 ish etc.
I just had some emulation woes getting godfather 2 on my deck. I did what you did but saw someone where to set gpu clock on steam at 1000 not 1600. I also went ahead and put 30fps cap so it’s not trying to do too much. These games run around 30 anyways. I also set the scale in steam as far.
Went from 11-15 fps to stable 30 with dips into 28 ish etc.
Hope this helps even if the game is different