We are not hearing any more comments on this thread. If you still run into this problem due to Dictation software, please reach out to Support.
An error occurred while saving the commentNelson Eulalio commented
I have the same annoying issue, and it has started only after the last Illustrator upgrade. (23.0.1)
I have an iMac 2017 running High Sierra 10.13.6, the dictation is off and I still have this lagging second when I click an object, selected shift and click on another object. It takes 1 to 2 seconds to have the other one selected.
Also, the lag happens when using Command Z, to undo a very simple action like moving a text to the side.
My dictation has always been off and does not resolve the problem.