The folks in your audience have a short attention span. After about 30 seconds people start wandering in and out of the speaker’s comments. There are tricks to keep them tuned in for more than that. Eye contacts keeps people more connected. An animated speaker helps. A strong voice also keeps attention longer.
A transition from one point to the next is a great opportunity to bring them back. The transition should not be seamless. Be abrupt. It gets attention.
As you start the transition pause briefly, then, with new energy, or different modulation or different pacing start on the new topic. It’s as if the audience is being treated to a whole new speaker. They’ll be reinvigorated. So will you.