An engineer observes that their powerful processing hardware is only at 20% utilization when handling user requests individually. To improve efficiency, they implement a system to group 8 requests together and process them simultaneously in a single computational pass. After this change, they find that the total time to process the group of 8 is only slightly more than the time it previously took to process one request, and the hardware utilization is now consistently over 90%. Explain the underlying computational principle that accounts for both of these outcomes.