Pause face recognition in Photos

Hello,

I've recently decided to move my entire photo library from Lightroom to Photos. I'm not a professional and I need only basic features. I really appreciate to have access to all my pictures from all my iDevices.

As my library is quite big (36'000 photos), it took a while but finally import has been achieved successfully.

So far so good.

But now it has started the face recognition. And on such a big library it takes a lot of time. Actually, it is processing since 1 week and it is still not achieved.

This process impacts the performance of my Mac. And Photos is almost not usable, it takes ages to edit a photo or simply delete it.

I don't want to disable this feature as it is a nice one. But is there a way to put it on pause when I want to work on my pictures?

Or is there a way to know how long it will take to achieve the scan the all the library ?

A big thanks for your help.