PPSSPP lagging on Galaxy S4

[EvgeniZ]

I'm also having problems with PPSSPP on my Galaxy S4 (korean Octa SHV-300S).
It has the Exynos CPU (1.6Ghz + 1.2Ghz) and PowerVR GPU.

Somehow my old Galaxy S3 (I9300) manages to run PPSSPP faster than my S4 with the same settings ...
While other Games / Emulators run better on my S4 than on my S3.
(Except for GTA Vice City, that runs terrible on the S4 compared to the S3)

Tried all kinds of settings with the newest builds and old builds on both devices, like low and high CPU Clocks on PPSSPP and frameskips etc.
The Galaxy S3 was always the faster device running PPSSPP.

Games that were tested:
Tekken 5 Dark Resurrection (Good Performance on S3, low to average on S4)
Tekken 6 (low performance on both S3 and S4, S3 slightly wins)
Little Big Planet (similar performance on S3 and S4)
FIFA 13 (pretty broken menus on both S3 and S4 but S3 wins)