One of the issues with element interactivity is that the more you build on new concepts, the harder it is for students to understand what has not been committed to long-term memory. So if slide nine, for example, is required to understand slide 10 and so on, it’s gonna be difficult for a learner because they haven’t committed that earlier stuff to long-term memory. Once it’s there, it can be easily accessed and used. But it’s got to get there first.
Discussion
The more stuff that is on a page or some piece of instructional material, the higher, the cognitive load. So try to only put on there what is necessary for the learner. Because remember, the learner cannot distinguish what is important like an expert can.  Related, try not to have something, both in written form and in spoken form. That increases cognitive load, which makes it harder for the learner to understand because they are trying to contrast and meld the two together.