Delayed AWT update:

  long version;
  long lastUpdate; // AWT time

  void data_trigger() {
    triggerQuickUpdate();
    triggerShow(++version, 1000);
  }
 
  void awt_quickUpdate() {
    if (lastUpdate < now()-1000) {
      getAndRenderContent();
      lastUpdate = now(); // This can be rough, no problem
    }
  }

  void awt_show(long n) {
    if (n == version) {
      getAndRenderContent();
      lastUpdate = now();
    }
  }