By default there are 2 sections on this page.
This is the default cart section. There are no section settings for this one. The settings available for the cart section can be found in Theme settings > Cart. More details here.
This the section where upsell products can be shown. The settings available in the section are the standard ones for style, spacing, content, etc.
Other than that, additional settings can be applied through Theme settings > Cart. More details here.