Why is Call of Duty lagging?

The short answer

Call of Duty lag usually comes from packet loss or delay on your connection, most often from Wi-Fi, a connection that slows down when others use it (bufferbloat), or background downloads. The "packet burst" warning means data from the server arrived late or in clumps. Show your latency and packet loss in the game's telemetry settings to see which problem you have.

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What "packet burst" means

Call of Duty can show a packet burst warning icon during a match. It means data between you and the server arrived late, out of order or in bursts, instead of in a steady stream. In game, that feels like delayed shots, enemies jumping around, or dying behind cover.

Packet burst can come from:

Your connection: packet loss or jitter from Wi-Fi, or bufferbloat when someone else is using the Internet.
Your device: a struggling console or PC that can't keep up with processing game data.
The server: busy servers, especially right after updates or in new modes. If everyone in the lobby lags at once, it's probably the server.

Show your latency and packet loss

Call of Duty's settings include telemetry options that show your latency and packet loss on screen. Look in the interface settings for telemetry or network stats; the exact location changes between titles and seasons. Watch them during a match:

Latency under about 50 ms feels good; over 100 ms you'll notice it.
Packet loss should be 0%. Any regular loss causes packet burst and missed shots.

How to fix it

Run our test with the speed test included. It shows whether you have Wi-Fi-style packet loss, bufferbloat, or just high base latency.
Use Ethernet for your console or PC if you can. It's the most effective fix for packet loss.
Stop background downloads. Call of Duty updates and other downloads on the same device compete with the game. Some titles also have a graphics option that streams high-quality textures while you play (often called on-demand texture streaming). If your connection is limited, turning it off can help.
Turn on Smart Queue Management (SQM) in your router if lag happens when others are online. See how to fix bufferbloat.
Restart your router and console or PC, especially if packet burst suddenly started.
Check whether it's the server: if friends in the same match lag too, or it only happens in one mode, the problem is probably on the game's side.

Questions people ask

Why do I get packet burst with fast Internet?

Packet burst is about timing, not speed. A fast connection can still lose or delay small packets because of Wi-Fi interference or bufferbloat. Test your connection while it's busy to find out.

Does Call of Duty need a lot of bandwidth?

Very little while you're playing. Updates and texture streaming are what use a lot, and they can cause lag if they run during a match.

Is it my console or my Internet?

If your frame rate drops at the same time as packet burst, your device may be struggling. If the picture stays smooth but the game feels delayed, it's more likely your connection.

Last updated October 17, 2026.