Why Is League of Legends Lagging?

Updated: 16th April 2025 3 min read

Millions of players log into League of Legends every day, expecting a smooth, competitive experience. But for many, that experience is interrupted by a familiar frustration: lag. Whether it’s a delayed skill shot, rubberbanding movement, or a frozen champion in the middle of a teamfight, lag can turn even the best-planned game into a chaotic mess.

So why is League of Legends lagging — and what can players do to fix it?

This article breaks down the technical, regional, and gameplay-related reasons behind lag, as well as practical steps to identify and resolve the issue.

Understanding the Basics: What Is Lag?

“Lag” in online gaming refers to a delay between a player’s input and the game’s response. In League, it usually manifests in one of two ways:

  • High ping (network latency): Delays caused by slow or unstable internet connections.
  • Low FPS (frames per second): Performance issues on the user’s machine, often due to hardware or software conflicts.
Medieval Twitch

Knowing which type you’re dealing with is the first step to solving the problem.

Network Issues: The Most Common Culprit

High Ping

Ping is the measure of how long it takes data to travel from your computer to Riot’s servers and back — measured in milliseconds (ms). Anything over 100ms is noticeable, while 200ms+ can make the game unplayable.

Common Causes:

  • Poor Wi-Fi signal or interference
  • Background apps using bandwidth (e.g., downloads, streaming)
  • Internet service provider (ISP) issues
  • Playing on the wrong regional server

Solutions:

  • Use a wired Ethernet connection instead of Wi-Fi
  • Close background apps like Steam, Netflix, or cloud backups
  • Restart your router/modem
  • Switch to the correct region in the game client

Riot’s Servers: Not Always in Your Control

Though Riot boasts one of the most stable server networks in gaming, outages and maintenance do happen.

Server Lag

  • Occurs when Riot’s servers are overloaded or under maintenance.
  • May affect multiple players in a game simultaneously.
  • Usually shows up as everyone lagging, not just you.

How to Check:

  • Visit status.riotgames.com to see if your region is having server issues.
  • Check Reddit or Twitter for real-time community reports.

FPS Drops: When Hardware Struggles

Lag isn’t always about the internet. Sometimes your computer can’t keep up.

Signs of FPS Lag:

  • Stuttering graphics
  • Freezing during teamfights
  • Fan spinning loudly or system overheating

Causes:

  • Outdated or low-spec hardware (CPU, GPU, RAM)
  • High graphics settings in-game
  • Overheating or dust buildup
  • Background applications hogging resources

Solutions:

  • Lower your in-game video settings
  • Update graphics card drivers
  • Clean your PC’s internals (especially fans and vents)
  • Close resource-heavy apps like Chrome or Discord overlays

Software Conflicts and Background Processes

Sometimes, the issue lies in how your operating system or third-party programs interact with League.

Examples:

  • Antivirus scans running mid-game
  • Windows updates downloading in the background
  • Overlays (e.g., Discord, Nvidia ShadowPlay) causing performance hits

Fixes:

  • Set League of Legends to “High Priority” in Task Manager
  • Pause or reschedule updates
  • Disable overlays temporarily

Riot Vanguard and Firewall Issues

Riot’s anti-cheat and security systems (like Vanguard, used with Valorant) can sometimes interfere with League if improperly configured.

Pro Tip: Add League of Legends and Riot Client as exceptions in your firewall and antivirus settings to avoid connectivity issues.

Final Thoughts: Don’t Just Endure Lag — Fight It

Lag can feel like an unavoidable part of online gaming, but it doesn’t have to be. With a bit of troubleshooting — from checking ping and closing background apps to adjusting graphics settings and checking Riot’s server status — most players can dramatically reduce or eliminate lag in League of Legends.

Because when you’re chasing that final kill or landing the perfect Malphite ult, every millisecond counts.

Written by:

Christian