I've asked this question on the PIP (performance improvement process). Before I added more details, the question received a few flags.
One way to interpret most of the answers is that "anxiety is natural to performance discussions, so the question is unanswerable."
If we consider that we can always do better, then saying "don't try" or "just be a good manager" is not getting at the root of the matter. (in that case, maybe it is a dupe?)
But the reasons for flagging may not be that simple.
How might a question like this be improved further? I would like to make it a durable Q&A exchange on the PIP topic.