High speed SD card too slow for One X3 !?!

I have a query…

The new One X3 camera requires an SD card of UHS-1 V30. I bought an Integral microSD UHS-1 V30 A2 with write speed of up to 150MB/s. So why does the camera say the card is too slow, fails to save and then crashes, after about 5 minutes of recording? I believe the camera is getting too hot, leading to the failure to save the data. The same happens even with the reduced bitrate setting.

Does anybody else have the same issue?