Xcode 8 product signing

Question

I just upgraded to Xcode 8, I am working with an old project (possibly created in Xcode 6 or earlier) that the problem (even in the simulator) of Xcode is stuck for at least half or one minute in the product signing step.

With Xcode 7, launching the application on the device was very fast and there was no phase of the Signing product.

Is there a way to speed up this process?

Since Xcode includes a new feature that will help you manage signatures, and I tried to deactivate this in: Automatic signature management. I still have the same problem.

I also tried using Xcode 8.1 Beta p>

Any idea?

thanks