800 MHz Qualcomm MSM7227-1 Turbo, ARMv6 (GT-S5830) ,
832 MHz for(GT-S5830i)
"more fast CPU" - 32 MHz difference on a single core. Not a big difference. I've not seen any evidence of more RAM or a different graphics chip - and even if there is, judging by the CPU 'upgrade', it can't be that significant.
I'm shocked at all this commotion over not being happy with a $4 program.
Adreno 200 vs. Broadcom VideoCore IV
278MB vs. 290MB Ram
If you don't see any evidence of different GPU you have a problem, maybe you can go to oculist or something.
I know GT-S5830I is not the ultimate quadcore device, but for a mid-end
or standard smartphone should have less lags at least in software mode, but this is just an opinion my friend, I have sound bug too, even with concrete games I have 60fps (with frameskip up to max) I have the bug sound, like slow-motion sound, don't shock/bullsh*t/childish my friend.