[Solved]Mali T720MP2 poor performance

[GuilhermeGS2]

I've tried 1x and 2x PSP resolution, and had no difference in performance, generally it happens when we have a CPU bottleneck. I've just discovered that Cortex A53 cores sometimes are slower than Cortex A9 cores or even have the same performance, Cortex A53 is based on Cortex A7, I thought it was faster just because 53 is higher than 9. I guess my problem is solved, but I'd like to know why the CPU usage of first core is too low.

EDIT: I've just checked the single-threading performance of both Exynos 4210 of SII and Exynos 7580 of J7, the 7580 is arround 47% faster than 4210, so there's no reason to it to be slower or have same performance on PPSSPP. Still confused...