Is there a way to speedup seamless cloning?

I'm using seamless cloning and it works perfectly. But it's really slow. I see only one core of my CPU is working. Is there a way to utilize all cores for seamless cloning? I'm using it for a Windows Store app. Depending on this post concurrency should work here: https://msopentech.com/blog/2015/03/25/concurrency-in-opencv-for-modern-windows-apps/ https://github.com/Itseez/opencv/pull/3840