ramakanth1408, Jan 5, 2018 : Hi, I was an OP3 and OP5 user earlier. Though I was impressed by the performances of the earlier two phones, OP5T is strikingly bad. Camera and WhatsApp are pretty laggy. And swapping between the apps is also not as smooth as the earlier devices. Is there a way to improve the performance or is it the device that's bad?