2017 response times of this fire department data

Mean:7.400

Median:7.500

Std, Deviation:

2018 response times of this fire department data

Mean:7.400

Median:6.500

Std, Deviation:4.1952

1. If the average response time improves (shortens) but the standard deviation of the response times deteriorates (increases), what is your conclusion of the performance as a service recipient?
2. Would you want a quicker average response at the expense of a more unpredictable response?
3. What would be the recommendation on which statistical measures he should use and how he should use them?