SQL reporting services, by default, sets up your online interactive reports to display as if you were printing them to a printer.  This was perhaps a good thing a decade ago when SSRS came out, but in my experience most people just view the reports digitally.  Luckily, there’s an easy fix.

Open your project.  Go to report Properties => InteractiveSize => Height and change it to 0.

SSRS Properties: Eliminate PageBreak

SSRS Properties: Eliminate PageBreak

You will get a warning letting you know it could impact performance.  This warning is true.  If your report returns a million rows, you should set a specific height instead of setting it to 0.

SSRS Eliminate PageBreak Warning

SSRS Eliminate PageBreak Warning