A family of Microsoft word processing software products for creating web, email, and print documents.
If select Simple Markup and from the Show Markup dropdown you select Balloons and the check teh Show Revisions in Balloons item, the comments will be collapsed to the icon enclosed in a red rectangle.
When you click on such an icon, the comment will appear.
If that is not a workable method, the only other thing that you can do is to insert hard page breaks into the body of the document to limit the amount of comment text that is relevant to the active page.