gta3 and other games lag in ANDROID??? try this

Works in ICS and ICS based ROMS only
 Download  link
Note: Backup important apps using titanium back up

Installation Guide

Download the Zip file
Move to SD card
Boot into CWM (refer ma previous blog on CWM)
Wipe data
Wipe cache
Wipe delvik cache
Install Zip
Wipe data
Wipe cache
Wipe delvik cache
Reboot

Now game works fine and u ll get smoother transaction effect