after upgrading to the latest ios build I get major cpu leak

I've been using 2014 build of webrtc for ios since half a year and the cpu consumption was about 70-80% during webrtc operation. But this week I've upgraded to the latest webrtc ios build and during webrtc operation cpu usage currently starts at 70-80% and begins to rise to 120-140%. This causes major lag on the video renderer until the connection is dropped.
This seems to be because of the growing network consumption rising as high as 2.5mb/s which is much more than needed.
have u had a similar issue? the traces are here -> https://drive.google.com/file/d/0B3QWaH_ugXTzMzBwclZCVnpBOUk/view?usp=sharing