Have you considered the high cost of task switching? It probably takes you a little while to stop doing one thing and start doing another with efficiency. What happens when you switch less often?
Also: Consider the sprint test. If there’s a task that comes up often, challenge yourself and your team to, just this once, organize and prepare to set a world record at actually completing this task. Get all the materials and processes set in advance. Now, with focus, seek out your most efficient flow.
Interesting take on how to work more efficiently, and how to view what you’re doing.