Tekken 6 stalling on mid-range phone

[ShortHaxYT]

Hey PPSSPP community,
My phone has the following specs:
Motorola E4
1.3GHz quad-core MediaTek MT6737M processor
2 GB RAM

I have PPSSPP Gold latest version - 1.10.2

I had seen people run Tekken 6 on low-end phones such as the Xperia Play with reasonable frame rates, so I tried it on my phone averaging 15 FPS. Despite using multiple speed hacks found on this forum and online I could only notch it up to an average of 25 FPS.Any tips?

Thanks a bunch