X-Large Captivate 9 character asset is showing up low resolution in project

Hi,

I downloaded an x-large character asset from the free asset store in Captivate 9. I was hoping that if I downloaded a large character, I could make them larger and closer-up on the screen than the smaller version of  the asset. Even though I download an x-large image, when I insert the image, it's the same size as the web version, and when I pull the corner to resize the image, it loses resolution quality. 

My project is  1024 x 627          

Any answers/suggestions would be appreciated, thanks!