Danganronpa Kibou no Gakuen ro Zetsubou no Koukousei (PSP The Best)

[altimus]

Came again as I haven't found a solution to my issue

Specs
CPU: AMD Phenom 4X Black Edition 9600 @ 2.3 Ghz (TLB fix)
GPU: Sapphire Radeon HD 4830 512mb GDDR3 (default clock 575/900)
RAM: 2 GB
Windows 7 x64 Ultimate

Current PPSSPP Built v0.8.1-1293-g39950b0 (This one lags more and image sometimes freezes but the games keeps normal) also tested with v0.8.1-399-gb581b73 and v0.8.1-1173ge03acc4 (all x64).

Config
Hardware Transform On/Off
Vertex Cache On/Off
MipMapping On/Off
Read Framebuffers to Memory (CPU) On

So the thing is that the memory that ppsspp is using goes way a lot, up to 1.6+ gb in 10 min of gameplay and ram no matter what configuration I use it goes to the system asking to close the program for memory lack (FF7 Crisis Core, Dissidia, GOW, Corpse Party and others don't go beyond 500-600 mb, even games like Tomb Raider 2013 1.1 Gb +/- ) and have already look for any info on the matter but haven't found a clue so can anyone tell me if it's hardware problem, configuration on the emu, newer versions conflict or just my luck xD.

Thanks in advance for any help.