Authors know that pacing is impacted by how long a particular passage runs. Often the longer the passage, the more time readers experience passing. There is one important exception: when the scene involves high action or suspense.

In this case, one of the best ways to enhance the writing is to slow down. Focus on the details that a character pressed mentally into a high state of alert will notice, and feed those to the reader. Fear, panic and the awareness of danger tends to make people hyper-sensitive to those kinds of details, so providing them in the narrative will connect readers directly with the emotional tone of the scene.