[bonchicbongenre]

I can recommend this this FF extension to get fine-grained video speed control, without a 2x speed cap (which often isn't fast enough)

https://github.com/codebicycle/videospeed

It has served me well for years and works on YT ads as well as other sites with similar players

[circuit10]

When I tried manually changing the video element’s playbackRate the subtitles would desync