Iphone 7 camera very slow to capture

HI everyone. Got the iphone 7 256gb 1 week already. I find the camera focusing speed is acceotable but a tad slower than 6s. However what i find most disturbing is that after i press the shutter button it takesa very long time to capture the image resulting in missing the nice shot of my kidd or slightly blurry images. I compared it side by side with the iphone6 plus. Then 5s snd 5. Results were disturbing. Even my 5 of 4 years captured images faster overall with slower focusimg speed

Did a reset using itunes on pc snd clean install again and also using recovery as suggested by apple chat. Still the same. searched on youtube on speed tests and note 2 reports thatthe 7's canera is laggy. Anyone with issues? Is it hardware or software? please advise. Btw also on latest ios 10.0.1