Why would anyone intentionally use complicated sounding language? It seems like a waste of everyone's time if your audience can't understand what you're saying. Don't worry about sounding too simple. Your goal should be to build intuition.
When you truly understand a subject, you can explain it to a kindergartener. When you can't, you hide behind acronyms and lingo to give the impression/illusion that you're an expert and to make it hard to ask questions. Using complicated language doesn't make you sound smarter. In fact, when lay audiences can appreciate the complexity of the work that you're doing, they value your expertise more, not less.
Make a concerted effort to explain things using examples that your audience is comfortable with. By making concepts approachable, you make learning less intimidating. You'll be surprised how much this separates you from other presenters.