Nexus 7 (2012 version) not powerful enough?

[the_randomizer]

So, I recently installed PPSSPP 1.0.0 on my Nexus 7 1st gen, the hardware specs are as follows:

CPU: ARM Cortex-A9 Nvidia Tegra 3 T30L 1.2 GHz quad-core (1.3 GHz single-core mode) 1MB L2 cache
RAM: 1 GB DDR3
GPU: 416 MHz twelve-core Nvidia GeForce ULP
Android version: 4.1.2 for the sake of Wii remote support, 4.2+ breaks it

So, these are the specs in my Nexus 7 tablet, however, upon loading a simple 2D/3D game like Star Ocean, a very disturbing issue occurred, i.e when moving around in towns. The framerate dips significantly when I move around (when the screen moves), however if I stay still, it goes back up to 60 fps. This does not bode well, and as such, I am absolutely 100% convinced that not only is the game too much for my tablet, but my tablet cannot handle PSP emulation, nor will it ever be able to run any PSP games, regardless of the fact it meets more than the minimum requirements.

I don't know if there's anything I can do to boost the speed, or that I'm simply SOL and will never be able to play any PSP game ever again on this tablet. Any suggestions?

Star Ocean shouldn't be that demanding of a game, the fact there's slowdown as I move on a 2D map with prerendered backgrounds disturbs me.