W1544382684316, Jul 18, 2019 : I should preface my statement by saying that this is the only issue that turns me away from this phone. In every considerable way, the OP7 Pro is the cleanest, most value-driven, customizable Android phone on the market. Before I purchased my OP7 Pro, I did plenty of research about OxygenOS and came to the conclusion that the phone would suit every need that I have as a consumer. One of my favorite things about higher-end devices is the ability to use my DS4 when playing old-school games using emulators. While there has always been some kind of lag, the OP7 Pro doesn't seem to accept my inputs at ALL. Immediately after noticing this issue, I headed straight to the forums for various tech sites, and still had no luck. I called into OnePlus customer care for assistance, and a very helpful gentleman attempted to assist me. After some time, he began searching the same forums that I had been searching for answers within. Unfortunately, it seems my request has fallen on deaf ears. With a community like this one, I would hope that at least one other person has noticed this issue. I'm not sure if it has anything to do with OxygenOS vs. Android Pie, since from what I understand the former is a modified version of Android, intended to provide the user with a fully-personal experience.