[Smush Pro] I'm having trouble with Smush Pro making a cover image too small

Hello! I am having an issue with the cover image on the homepage (https://www.newhollandwood.com/wp-content/uploads/2019/10/1-St-Martins-Episcopal-Church-Houston-TX.jpg) of this site (https://www.newhollandwood.com) when I try and use the CDN. It changes the image that should be 1920 x 900 to 768 x 360. That’s much to small for this image. The other images are fine when delivered by the CDN, just not this one. Since this is a focal point of the homepage, it’s important to not be blurry. What am I doing wrong to keep this at full size? Thanks!