Increasing the shutter speed will help reduce blur. I think the default is 1/25s (or 1/30s). You can double or quadruple that. The downside is that with faster shutter speeds, the camera has less chance to collect light, so it will darken the image.
In your first video, even if it wasn't blurry, unless you knew the person, it would likely be hard to identify them. To ID someone, the recommended pixel density (PPF) is 100 PPF. Use the
IPVM Camera Calculator V3 tool to get an idea of what your current PPF value is.... Type in your address, add a camera to the Google Maps picture of your house, change the camera model to what you use (5231), position the camera on the outside of your house, then drag the little guy out to the street... the website will show you what the PPF is. It will also let you simulate how the PPF increases if you zoom the camera in more.
For your second video, mounting the camera to where the awning is 70% of the picture makes the current view from this camera not useful. Maybe this camera can be pointed at (and zoomed all the way in on) the mailboxes (which might take the awning and tree out of the shot). Even then, it might not get you a PPF of 100.