Periodically loses your wi-fi connection. On the street, data transmission was lost, you had to reset the network settings, then you connected to wi-fi, and the Internet resumed on the street. I also noticed that when you turn off the screen with the button, it can not quickly turn on a large pause of 3-5 seconds. This was not the case on other firmware versions. And the wi-fi connection is unstable, a weak signal near the router at a distance of 3 meters. The PvP game exhibits freezing, which was not the case in other ROMs.