Video are not playing automatically on ios devices

I’ve already muted the video and video is being played on all android devices and some iPhone models as well but it is not being autoplayed on some iPhone models and even on some of the phones it takes more than 30+ sec to start the video automatically.

I’ve used this below code to place the video:

<video width="100%" autoplay muted loop playsinline>
    <source src="" type="video/mp4">

Page link: GO24•7 Case Study | Carlos Sanchez | Visual Designer

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I even tried to disable to low power mode on iPhone still not working!