Background Video - Quality

So on a page (The Lodge) on this site, I currently have a background video, and it’s pretty poor quality - the original video is crystal crisp, but I appreciate Webflow reduces the quality for web. However, it does have the ‘Cover’ fit function, which really helps with how the video looks across different devices. Therefore, while not ideal, it has been my best guess at how to implement this item at present.

Does anyone have any idea how I could implement this so that the video displays similarly to how it does now, but in higher quality?

Here is my site Read-Only: LINK