In reply to Yerliteknoloji.

I see this question a lot, especially when we post about third-party plugins, and the answer is that it depends. Yes, adding any video background in and of itself will add to the page load.

However, page speed should be approached more holistically rather than deciding based on individual components. For example, what else is that specific page loading other than the video? Are there other areas that you could clean up if you really, really want that video background to get the design you're after?

Users should also consider whether they need a specific feature. Given the example of a videographer in the post above, it makes sense that someone in that role would use a video background on a profile-type card page.

Anyway, each use case is based on individual experiences. No two websites are alike.