If your first response time is slow, everything else is secondary.
In customer-driven businesses, I learned that one KPI often gets buried: how fast you respond to a customer's first inquiry. While leaders obsess over revenue and margins, customers are forming their first impression.
A delayed first response communicates: you're not important to us. Even if you solve their problem perfectly later, that initial delay has already shaped their perception. First response time is the gateway to everything else.
I've seen this principle work across industries. The business that got back to customers fastest didn't necessarily have the best product—they had the fastest response. Those who moved slowly lost deals before they even began.
This metric matters especially in competitive markets where similar solutions exist. Speed of response becomes a differentiator.