How can I fix a video background not loading on mobile power saving mode?

So I’ve been designing my website and everything looks and works great, i added some code to add a video background to my website and everything was all good, until i decided to go on the website on my phone in power saving mode, when i do the video does not load, is there any fix/code to get around this? or is there a way to code it to where when power saving mode is enabled it changes from a video in to an image?