If vowels collapse or endings disappear, pull tempo back and exaggerate contrast on stressed syllables. Use rubber-band gestures to stretch sounds. Clarity first, then gentle acceleration. Five clean sentences beat twenty rushed ones that confuse listeners and you.
Replace uh and um with a breath and a pause. Mark likely hotspots—names, numbers, transitions—and rehearse them slowly. Speak to a friendly person in your mind. The human connection softens delivery while quieting habitual, anxious interjections naturally.