Default Help running Grand Theft Auto Vice City

Good night to all folks in these forums. This is my first post here (but been lurking around since last year). The problem I have is presented shortly.
On the stock Rom I am (Touchwiz, 4.1.1), I can play GTA VC (among other applications) at full speed, as if I was running the PS2 or PC version of GTA.
The problem is, when flashing to an AOSP ROM with Kit Kat, suddenly the game becomes stuttered. It happens while driving and in cutscenes. If resolution is not all the way up, even cutscenes turn unviewable. Turning resolution all the way up only manages to get the gameplay stuttered. I've tried every major ROM out there (Omnirom, PA, CM, AOKP), but to no result. Funny thing, I can play GTA 3 and San Andreas like a champ, except for Vice City.

Can someone please help me?

Many thanks for taking the time to answer.

BTW, my recovery is TWRP 2.4.3.1

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