How can I fix my homepage slideshow images that are not displaying correctly?

Technical Q&A
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  1. My homepage slideshow images are not showing properly, some are getting cut off while others are showing lower quality than what I loaded. Is there a way to fix this? https://competitionwerks.myshopify.com/

  2. How do we get all the images on our Brands page to display the logos in the same size? https://competitionwerks.myshopify.com/pages/brands