Photon Voice High CPU Usage

Hello,
In testing out our Photon Voice integration, we noticed that both Unity and built stand alone executables are running at a very high CPU (150%-300%). I have noticed the same exact spike in CPU when testing out the DemoVoice project provided with the Photon Voice download.

I was wondering if anybody had advice on how to troubleshoot what might be the issue? I'm not seeing anything in the logs that indicates what might be causing the problem, but perhaps I'm not looking for the right log statements. If there is anything I can provide which would help, please let me know and I'll try to see what I can find.

Thanks,

Build:
- Unity 5.6.1f1
- Client Build: macOS 10.12.5
- Server: Self hosted Photon (Photon-OnPremise-Server-SDK_v4-0-29-11263)
- Photon Voice: v1.91 (according to the changelog.txt file)