IMHO, the presentation style is a little bit too hasty. But that's just my personal impression.
I enjoyed the information presented - but, yes, I agree that it was presented at a slightly fast pace. People unfamiliar with some of the basics would have trouble keeping up.
This is not an uncommon trait - especially with people just starting out with "public speaking" type activities. My understanding is that it is a result of nervousness, or perhaps apprehension, and when the words stack up behind the lips, they have to get poured out quickly. Slowing down the baud rate is one suggestion - another is including pauses.
With written material (correctly punctuated) the guideline is to take notice of every comma and full stop, pausing appropriately (half a second is often enough). It is also a good idea to take a longer pause if you have just presented a group of related points, so that the group understanding can be absorbed.
With spoken, off the cuff material, that is a bit harder - but I think it might be worth imagining someone there watching you. If there
were a real person, you would tend to look at them every now and then to see if they are giving indications of understanding ... and I would suggest the times when you would be inclined to do this - are the times should should take a pause.
Now, this may seem really critical - but I offer it as an observation to help with communication. Dave2 is obviously knowledgeable ... and I would really like to see more of his presentations.
To be clear ... I really enjoyed the content!!