Banner image link that is getting renderd
I attached the image link that is getting rendered , see if it’s actual size, if not then it’s the same reason.
Here I am on the mobile, you can see render size is small enough. Shopify use responsive image for optimization. You can change it via liquid. I don’t know where it’s located that’s why I can’t say where to change.
But if you want I can help you out with that.