Interesting! Indeed no APNGS, only MP4, png and WebM. Will try to see if I can do some more profiling but I am very new to making websites. Using eleventy as a static site generator and then doing some image compression also.
Hold off on loading and playing the videos until they are visible: https://web.dev/lazy-loading-video/#video-gif-replacement
Automatically pause the video when they are scrolled off the screen and no longer visible: https://benfrain.com/automatically-play-and-pause-video-as-i...