Plan a series of slides that progressively discloses your subject, building from cause to effect, simple to more complex, questions to answers. Don't bury your points in too much detail. Use your slides to assist your words and keep you on track. The text of your slides should be concise. Each slide should express only a few closely related ideas, tersely stated.
Words have limitations.
Graphs, drawings, and photos can often explain what language cannot, so illustrate what you can't verbalize. Illustrate what takes too long to describe. Illustrate what you want to emphasize. Use the minimum number of slides that will allow you to convey the essence of your paper to your audience. You have 22-25 minutes for your presentation.