Function to disable making multiple images

Hi, folks
looking for help to add a function to our site where we have Formidable working with WooCommerce Storefront. If somebody uploads an image file, we get whole slew of image sizes created beyond original image (e.g., 1300×600 jpg). Looking for hook or code to disable that in some way since only image additions are from Forminable.

Thanks. 🙂