I have using this phone from 1st may. I had never seen any problem or lagging issue in the devise. The phone is very good at the price. It has snapdragon 425 prossesor that is not so strong but good for normal use. It has 720p display. In this price I never expect 1080p display. Camera is also performing very gratefully. The best thing is it has gyroscope sensor. That is very good. So that we can see vr on it and can feel the real 360° video. The phone is very good in price. I really like the phone and satisfied at its performance.