This is a perfectly stable Xperia rom for the gionee P3 and no lag is present. Install this rom zip file

via custom recovery. It has no bugs and everything is working fine.

Features:

Xperia UI

Sony Walkman

Transparent status bar and notification

Customizable launcher

This rom works perfectly with Nova Launcher.

Install Nova Launcher from here

Installation:-

place the .zip of ROM file, standbyfix and gapps in sdcard

1. Reboot to Twrp Recovery

2. Wipe data/factory reset and advance -> Wipe dalvik cache

3. Install zip -> install xperia.zip, gapps, and standbyfix

4. Reboot System now

first boot will take sometime…!

Download Links:

XPERIA ultra ROM

GAPPS (Optional but necessary if you want all google apps)

CELL STANDBY FIX (it will prevent quick discharge of battery and extending battery life)

Xperia Z ROM Ultra For Gionee P3