Hi Chris and thank you very much for your reply and update
This slow down in relation to activation and deactivation is a real thing that’s happening to me for sure. I upgraded to 10.11.1 last night and the problem is very definitely still present for me and my local setup / working environment.
Before I would have no hesitation in activating 1,400 Google Fonts, I could watch as the progress wheel would progress speedily to activate all the fonts I tried this again this morning and it took minutes to activate and was painfully slow… even effecting the performance on my MacPro 12 Core (Mid 2010) with 64GB RAM and 512SSD drive… very strange indeed… so I tried to de-activate and that was even more painfully slow… so slow it almost rendered my computer inactive with my internet radio connection stuttering and spluttering effected by this task…
I had to force start my computer to exit the task as nothing else would work, which I should not really have to do.
Something is very much up for sure… as before… I wouldn’t have noticed an issue… I am now manually activating individual Google fonts that I would like to explore in my projects… but this is all time wasted compared to my workflow on Yosemite where none of these issue occurred and I had auto-activation inside Quark… I don’t even have that now as Suitcase is crashing my QuarkXpress 2015 software.
Is there any new beta build I could try that might improve my current situation and give you development feedback also ?
Best and kind regards,