If the audience can't get the gist of the text on each slide, that's their problem, not yours. Also, use the smallest font possible and cram as many words as you can onto each slide. If the audience isn't squinting, they're obviously not paying attention. Speak quietly . Microphones are for wimps.
People unconsciously tune out a loud voice.
Never use notes . Just turn around and read the screen if you absolutely have to. Read each and every word on the slide while you're at it, since most audiences have the combined intelligence of an oyster and can't input information from more than one of their senses at a time. If you're feeling especially nervous, just run around the room a few times. That always calms my dog down.