Blurry iPad screenshots after publishing

Hello, I am in the process of creating a training course for a mobile app. This course must contain several screenshots of the app. I have used my iPad pro to take these screenshots at 2048x2732.

Seeing that my project size is set at 960x540 I need to re-scale the image to 375x500 in order for it to fit within the project. This results in a blurry image after publishing. 

I understand that it is Storyline 360 best practices to not rescale images and to import captured images at the same resolution that you will be using in Storyline but I cannot control what resolution my iPad takes a screenshot at. How do I get around this? Has anyone else had success using mobile screenshots in a Storyline course? 

Thanks for the help!