"To handle the volume" means to manage or deal with a large amount of something efficiently.
Sentences with «to handle the volume»
That trend is being seen across the board as banks simply can not handle the volume of new «single digit» millionaires. (inc.com)
Most of the kitchen counter problems have to do with daily mail and we've never had a good system for handling the volume of papers, many that need to be retained. (theinspiredroom.net)
And you need to know that your manufacturer can handle that volume while maintaining quality. (entrepreneur.com)