I’ve been using a Chrome extension called Video Speed Controller to speed up boring videos and TV shows. It works great, I’d definitely recommend it. I use it on Netflix and Youtube, often bumping the speed to 1.2x. Sometimes to 2.5x on slow lectures.
If you’re concerned about giving it permissions to view all of your content on all of your sites (I was!), you can go into your Chrome Extensions menu, and give the extension limited “site access”. I gave mine access only to sites when I click on the icon in the Chrome toolbar.
I use the hotkeys “S” and “D” to change the speed of the video dynamically. It’s weird when I slowly crank the speed up. Like the proverbial frog in a slowly boiling pot, I hardly notice the gradually building heat!