Some of the the videos I will post are sped up to compensate for how slowly I typically speak, but not all of them are. If you find a video is too fast or slow, you can get a browser extension that will let you speed up or slow down the videos as you like.
Chrome:
Playback speed for embedded vimeo
Playback Rate
FireFox:
Faster Video
I’m sure there are similar options for Safari and other browsers, but I can’t seem to find a free one.