A few things to fix during Beta phase of my site

Hello! My Laptop Slider is not working with Jetpack enabled. As soon as Jetpack is disabled it works. As seen in previous topics posted about the issue, it crops top and bottom. Pictures are sized to ideal size mentioned in another topic, do they need to be a little smaller maybe?

Also, the featured image featured section of One Page demo, what is the ideal size? It looks very fuzzy on the display when it gets posted to social media and what not. I realize the image gets resized for different screens, but still would like to look at this more in depth for better results.

The featured image shows up highly cropped in social media. I am using YoastSEO (in the past I have used AIO SEO, but since this hosting package came with Yoast, I am giving it a go), they ask me to upgrade to a better and more expensive package to customize the social media outputs, is there a workaround? It usually spits out either a very blurry logo image (in small format like Instagram messages) or it spits out a super cropped illegible version of the featured image or first image in the body.

Finally, can I change the WooCommerce email template to stop saying WooCommerce at the bottom? I would prefer to have my business name there. I imagine this is a file manager thing that I can do relatively easily, just want to ask you guys for best practices. I do have access to the Child Theme that came with the other demos.

https://doitrightcomputers.net