What Is Latency—and Why Does It Matter for Your Internet?

You’ve probably blamed slow internet for a video call that keeps freezing or a game that lags at the worst possible moment. But speed isn’t always the culprit. More often than not, the real issue is latency—and it’s one of the most misunderstood aspects of internet performance.

To break it down clearly, we spoke with Chad Maalis, Nuvera’s Director of Network Services. Keep reading for a straightforward guide to what latency actually is, how it differs from speed, and why it matters more than most people realize.

What is latency, and how is it measured?

Latency is the measurement, in milliseconds, of the time it takes for a user’s request to travel from their device to its destination and back. Type a web address into your browser and hit enter—the time between that action and the page appearing on your screen? That’s latency in action.

“Latency is the time that it takes for that initial request to go to the server and for the server to respond,” Maalis said. The round trip matters here. Your device sends a request to a web server, the server processes it, and the response travels back. Every millisecond of that journey counts.

Lower latency means a faster, more responsive experience. Higher latency means delays—sometimes barely noticeable, sometimes frustrating enough to disrupt your entire workflow.

How is latency different from internet speed?

Latency and speed are related, but they measure completely different things. Confusing the two is one of the most common mistakes people make when evaluating their internet connection.

Latency measures responsiveness—how quickly a request gets a reply.

Speed measures throughput—how much data can move per second, expressed as a bit rate (Mbps or Gbps).

Maalis uses a simple but effective analogy: “A good analogy of latency would be on an interstate—how long it took to drive from your home to the store and back. Speed would be, is it a two-lane road or a four-lane road? On a four-lane road, you’re going to be able to pass more cars.”

Which online activities are most affected by high latency?

Not every internet activity is equally sensitive to latency. Streaming a movie, for example, buffers content ahead of time, so a small amount of latency rarely causes problems. But real-time activities are a different story.

The online activities most impacted by latency are:

• Voice calls – Even a fraction of a second of delay creates awkward gaps and talking-over-each-other moments.
• Video conferencing – High latency leads to frozen frames, audio sync issues, and dropped connections.
• Remote work – Accessing cloud applications, remote desktops, or corporate networks becomes sluggish and unreliable.
• Gaming – In competitive gaming, high latency (commonly called “lag”) can mean the difference between winning and losing. Inputs don’t register fast enough, and the game world feels out of sync.

If your household relies on any of these activities, latency deserves as much attention as download speed.

Why does fiber internet have lower latency than cable or 5G?

The physics of fiber optic technology give it a fundamental advantage. Fiber optic cables transmit data as pulses of light, which travel at (or near) the speed of light through glass or plastic fibers. That’s significantly faster than the electrical signals used in traditional cable infrastructure.

Cable and 5G wireless connections face physical obstacles that fiber doesn’t. “Other technologies like cable and 5G wireless get impeded by weather, heat, foliage and some of those types of issues that underground fiber optic cable does not,” explains Maalis.

Because Nuvera’s fiber runs underground directly to customers’ homes, the signal doesn’t have to fight through environmental interference. The result is a consistently lower, more stable latency. Not just on paper, but in everyday use.

How does Nuvera’s network infrastructure reduce latency further?

Fiber technology alone isn’t the whole story. The architecture of a provider’s network plays a significant role in latency as well.

Nuvera takes additional steps beyond simply running fiber to the home. “Nuvera’s internal network positions certain content delivery networks, and we peer with multiple large organizations,” says Maalis. “The connection is closer to the customer, resulting in lower latency.”

The Bottom Line: Latency Is the Silent Performance Factor

Speed gets most of the attention when people shop for internet service. But for the activities that make up daily digital life, latency is often the more critical measurement.

Fiber internet delivers lower latency by design, and Nuvera’s network infrastructure takes that advantage further through strategic content delivery network partnerships. The result is an internet experience that doesn’t just transfer data quickly—it responds quickly.

If your current connection feels sluggish even at high speeds, latency may be the missing piece. Contact Nuvera today at 844.354.4111 or go to getnuvera.com/fiber to find out if fiber internet is available at your address.