PPSSPP options explained

[Kaiser_KakashiMugen]

so i encountered something in the emulator that is rather weird. i just played patapon 3 one second and played metal gear solid peace walker the next few minutes and suddenly, the emulator shows 2 small screens. and no amount of twidling with the config fix it. actually let me rephrase that. what i mean was noly non-buffered rendering is the only working solution but even that isnt a fix, as it doesnt show the game properly. does anybody have the same issue? i also encountered this problem with danball senki boost one time but going read framebuffer to memory gpu fixed it.