rule of thumb for emulation?

[Henrik]

Games on PSP differ incredibly much in how much they demand of the hardware, and the HLE nature of PPSSPP makes the overhead very low for games that don't really use the hardware. So some games, like The Impossible Game, will run at fullspeed on the crappiest hardware while I'm sure the toughest ones will only go full speed on high end phones, even after optimization. We will see.