So what is the one simple thing that professional speakers do which you are probably not doing, but could do? Here is the thing: professional speakers often at times focus on one big idea and then they tell stories to flesh out that idea.
They do not try to cover every single fact or point to a board with lots and lots of point as they know that a speech is not the platform to do that on. The speech or presentation is a great place to get people to focus one or two very important ideas and to get them to do one action, if you have lots of data, do what professional speakers do, allow them to get all that information from somewhere else! For example, a book!
But it does not necessarily need to be a book; it can be your email that you hand out or a single fact sheet. The main purpose is to avoid dishing out every little detail about your subject. You do not need to tell them about every penny earned by your organization in that quarter. Focus on what is most important, tell the story about it and make them understand, and if you still have lots of data, make it available some place else, whether it be online, in print, or through a pdf.