Those who hold expectations may be disapointed by the result. There is no way to ensure that your hopes comes true, all you can do is keep hoping something good comes your way.
This is the main gimmick I wanted to work on, "holding expectations" is a more random type of scry mechanic, you reveal whats coming, but you cannot change it unless you expect again for something else. "performance" is a little extra that comes from using such a random and chaotic mechanic. Not something you can plan to get, but a little surprise to reward your expectations.