Of course the meter is the issue and increasing its size is ot an option. We need an additional 5gpm of flow to the most remote area and are considering all available options.
TIA
Use a smaller K factor fire sprinkler and increase pipe size(s) are the most common ways to reduce flow. You can also use different K factors for pendent, upright and sidewall sprinklers in the same compartment strategically to reduce flow sometimes.