I am using epic rom now. Its really amazing. Smoothness is concerned. My previous rom was global stable. Actually aome questinable lag was there but rom is totally lag free everytime sometime its very smooth here .gmaing perforcement improved a lot. I have tested asphalt 8 on highest graphics setting and its just smoothly. Thia game was running fliently. Camera is also very nice. Performance is also very good and battery is also very high. Sound quality is very brialent this time no lagging. Thats all about his phone