Dissidia 012: Duodecim Final Fantasy

[Arkadeep]

Hello I'm new to ppsspp and this is my first post I'm facing a problem in this game when I play for more than 15mins I'm running ppsspp on android my settings are:-
Mode-Non-buffere
Display res.-2*psp
minmapping-on
hardware transform-on
software skinning-on
vertex cache-on
lazy texture cache-on
disable slowet effects-on
retained texture-on
anisotrophic filtering-off
texture filtering-auto
all hacks-disabled
fast memory-on
multithread-on
JIT-on;everything works fine with non-buffered but after some time it breaks into pixels or little pieces(im not sure what thats called) im using ppsspp v1.2.2.
Thanks in advance