As speaker, you must always be in charge. Do not try to hide behind the screen. Know your goal. Your presentation must make this clear at the start, and everything you include must support this. When something does not add to your presentation, then it subtracts.
Many speakers try to achieve too much, and as a result they fail to reach any goal.
Most software includes pre-packaged outlines that encourage you to fill in the blanks. Don't look at these until you have done your own outline. Then, treat these as suggestions. In an effort to be helpful, the software companies have steered users into predictable and boring structures. I strongly recommend that a professional who understands your corporate image be the one to design these.