Premium Plugin Activation issue

When I activate the premium plugin, all my woocommerce product pages on desktop become mobile. I currently have to deactive it.
And if i use CSS to override, it completely changes my template design. How can I switch off the mobile responsiveness on desktop?

Also, on the free version, when I used the plugin, on the sidecart, it does not completely show the product variations as it does using native woocommerce cart display. How do I also ensure it shows the product variations in the side cart?