Razer Thresher 7.1 PS4 - PS4 Doesn't recognise 7.1

Hello, I bought Thresher 7.1 PS4 headset, everything is great about it, but, there is one concern. When I start The Last of Us in game audio options there is only 2.0 channel to select. My friend has Astro A50 and when he plays TLoU 5.1 sound option is available. What is the reason behind that Thresher are 7.1 but game does recognise them only as 2.0. I connected them via optical cable and all is set in settings as it should be. Also I get surround sound by pressing and holding volume button. But still for the game and PS4 headset is only 2.0. Is there any firmware update or something that I don't know of and should make? Thanks for any help