wifi speeds

wondering what wifi connection speeds people are getting on their oneplus 2,
according to ifixit teardown it has a Qualcomm QCA6174 802.11ac Wi-Fi 2x2 so it should have two antennas.
https://www.ifixit.com/Teardown/OneP...mpaign=YouTube
but I am only getting single antenna speeds, same connections speeds as G4 and basically half of the speeds I got with my nexus 6.