If your customers frequently buy many different products in a single order, aggregated review forms might become really long. In this case, you might want to use the 'Maximum number of products' option in configuration of the aggregated review forms.
This option allows to limit how many products will be shown on review forms. If an order includes more products than specified in this field, only some products (up to the limit) will be shown on the review form. Use this option if your customers tend to place really large orders with many items that are difficult to review at once. Setting this option to 0 will remove the limit.
To access this option, it is necessary to use the advanced visual editor for review forms. You can read more about it here: How to Set Up Review Form Templates.