My new 16" MacBook Pro just arrived on my doorstep - anxious to check it out with Dorico! I think the screen is only .6" bigger than the 15" MBP (which is actually 15.4").
My email address is d dot spreadbury at steinberg dot de (i.e. just my initial rather than my given name), and I would certainly be interested to see a project in which it repeatably takes ~4 seconds to add a playing technique. Jan, if you have such a file please do send it to me so that we can take a look. Be sure to specify where you are making the edit so that we can reproduce the problem exactly.
Thanks Daniel, but no need.
It is indeed related to the first use of a technique in the score.
Since I did them all in the same pass, the feeling was effectively a very slow response from the software.
On the other hand, the multi document delay for selecting, copying, etc is definitely there, whatever the project.
best
Yan