Mix console loads channels very slowly when opening a progect, save is also very slow

Hello everyone, I have a very strange problem with my Cubase 10, my empty template, which has 15 Kontakt instances, all samples purged, takes 2:55 minutes to load and another 2 minutes to save and another 2 minutes to just quit without saving, and also similar amount of time to autosave every 10 minutes, which kills any chance to have a train of thoughts… any help please?
I am using Cubase 10.05 on Mac Pro, High Sierra

Don’t use that many Kontakt instances…
Kontakt is not that economical with resources.