Not everyone can use a script from the stage. If you have a teleprompter or a podium, a scripted presentation can be delivered very effectively. But most people aren’t comfortable following a script and it is difficult and awkward to integrate scripted parts with non-scripted parts. Nevertheless, it is absolutely fine to bring up notes to the podium and use them to help you slow down. The notes could be the actual script, or an outline of your script with key points. Your audience will not view such notes as a crutch, but rather, they will view you as prepared, with notes that help you make a stronger verbal presentation.