Silver Efex Pro 3 is a mess!

My system: MacBook Pro 2015, 2.8 GHz Intel Core i7, 16GB, 10.14.6 Mojave.
I am working with PhotoLab 4.3 and Nik Collection. 3 days ago I have upgraded from Version 3.3 to 4.

After working a lot with CEP yesterday, I wanted to use SEP today. Unfortunately, this is impossible, SEP is unusable. Each correction takes several seconds until it becomes visible. There is no idea of fluent working, SEP is a complete and utter disaster now, I am totally pissed off. :rage:

Hi Manfred. Your experience is not typical - - I suggest you raise a ticket with DxO Support (click here).

John M

I read about many problems concerning SEP3. Both under macOS and under Windows. I’m afraid I’m not an isolated case. I will uninstall Nik Collection 4 and return to 3.3.
BTW: I don’t think it’s a coincidence that all webinars regarding Nik Collection have been cancelled: Webinars - Nik Collection dy DxO