All of the videos on our blog are capable of increased play back speed. Click on the sprocket in the lower right hand corner to access that feature.
For the videos in the member area they don't have that capability. There's a service out there called MySpeed that works well on a Mac or PC. You can get a 7 day trial to it, and see if that helps you.
Use this link to get a 7 day trial: https://theotrade.com/go/my-speed/