I am running Hi Sierra (latest update) on a 2011 iMac. Of late, I noticed that Voiceover runs in jerks and spurts. This is especially annoying when I use the Read All (VO + A) command. Besides it keeps saying 'Voiceover Settings Activity'. Some poster recommended running the killall command in Terminal but that seems do nothing to VO's behavior. I have even tried changing voices to no avail.
I am wondering if my machine is too old or is there something I can do to prevent this annoying behavior?
Happy New Year to you all and thanks.