MP4 animations look very pixely

So I have several MP4s in my Farmers section on my website. The social assets look great but the banner animations (which are smaller at 970x250) look bad on desktop and above. Is there some setting where I can get the banner ads to load at their size and now have Webflow stretch them to a bigger size? (I think that is the problem…??) Here is my read only link.

https://preview.webflow.com/preview/portfolio-21-day-challenge-a6106a?utm_medium=preview_link&utm_source=designer&utm_content=portfolio-21-day-challenge-a6106a&preview=80f44fb094c60683c6c386c047eac154&workflow=preview