I am having problems playing a particularly demanding video from YouTube (https://youtu.be/-W_nFlIAWFM) which runs at 4K/30 fps. It is a video taken from a drone flying over the Matterhorn in Europe. Here is my configuration: 1. I have a 200Mb connection to the internet and bandwidth testing confirms that it runs at a consistent 195 - 202 Mb. 2. I am using Firefox 126.0 on a dual boot machine running Ubuntu 22.04 LTS and Windows 10 (both OSes show similar stuttering and pausing). 3. My hardware is a Gigabyte Aorus Z690i motherboard with 32 GB of RAM and an Intel i5-12600K processor and an NVidia GeFroce RTX 2060 Super graphics card. I have tried disabling "Use hardware acceleration" in Firefox and also disabling all add-ons and rebooting. This hasn't resolved the problem. When I watch the same video in Google Chrome, it seems to display a much slower frame rate than 30fps but doesn't stutter. I have concluded that this video must be a super demanding one to render. There are many picture elements changing constantly. But is there a way to watch this at 4K/30fps with it playing smoothly and at the correct frame rate?