When I bought a new monitor it was hard to find videos in high quality 144 Hz, so here is a test video for you. This video is around 300 MiB and 144 Hz in resolution 2560x1440. It's a simple example of Starcraft 2 units raining down with Oimo.js physics, implemented in WebGL. I'll clean and give you the source code if you e-mail me at email@example.com but you'll need some GLTF 2.0 3D models, or alternatively to own a copy of Starcraft 2 to run it. I recommend watching in fullscreen and probably download video first by right clicking and save video if there are bandwidth issues. Videos tested in Chrome, Firefox and Edge on Windows.
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If you are on low performance device and just want the gist of what's going on check out this low quality version video 60Hz 640px wide. Tested on iPhone 5C: