"performance show" — Kollokationen-Wörterbuch Englisch

performance show Kollokation
Automatische Übersetzung (wir garantieren seine Korrektheit nicht): widowisko przedstawienia
  1. performance Substantiv + show Substantiv
    Schwache Kollokation

    I think if parents are concerned and feel that their child is brighter than his performance shows, then it is time they took some action.