I have a Samsung Tab 6 with a very nice 8" oled screen. I want to use it in combo with my Bluetooth controller for my Steam Games (a little more reading room). I tried Steam Link and it works, but the lag with my wifi is quite unplayable so, since i already have a dock and an hdmi cable, i was thinking to buying a second dock ( as the one in the photo). Anyone has do anything similar? Can you suggest any free android app to do the mirroring from my tablet??