In comments on recent videos, several people have mentioned that they want to be able to adjust the speed of video. Here is link to Vimeo Faq on how to speed-up / slow-down video playback:

https://vimeo.zendesk.com/hc/en-us/articles/115012275447-Playback-speed-controls

FarsightPrime's vimeo embedding allows you to adjust the speed. Simply hover your mouse over the lower right corner of video. Click on the round settings gear. Click on Speed to expand selections. Choose Playback speed you would like.