In a recent online survey of 688 people who regularly view PowerPoint presentations 62% said that their top annoyance is when the speaker reads the text on the slide word for word. If you have a lot to say about a particular slide that’s OK but you should NEVER use the slide as a cue card and read everything to the audience. Use the notes page and print out your notes if you need a reminder. Put as little text on the slide as possible and refer to your notes if necessary.
Do not overload your slide with too much text. Generally when slides are filled with a lot of text the audience is too busy reading the words rather than listening to you. Or, if they are listening to you they aren’t reading the words on the slide. Try to limit your words to 6 words per line and no more than 4 or 5 lines on a slide. If you have a lot of info you must include, use more slides.