Lag and Low Frame Rate Troubleshooting
Posted on 02/27/2018 by LoL PH Admin

Low Frame Rate (Lag)

Lag can come from anywhere, but it's usually the result of a few main issues. These general approaches are intended to resolve some simple but persistent sources of lag. 
Make sure your PC meets the minimum system requirements

You can find the requirements here. If your computer doesn't meet the recommended specs, you're going to experience at least some lag.

Lower your graphics settings

If you're lagging before a crash, lowering your graphics settings can improve your experience.

  • Enter a custom game

  • Press Escape and select "Video"

  • Adjust the following settings:

    • Settings: Custom

    • Resolution: Match desktop resolution

    • Character Quality: Very Low

    • Environment Quality: Very Low

    • Shadows: No Shadow

    • Effects Quality: Very Low

    • Frame Rate Cap: 60 FPS

    • Wait for Vertical Sync: Unchecked

    • Anti-Aliasing: Unchecked

  • You can also adjust several "Interface" options:

    • Uncheck "Enable HUD animations"

    • Uncheck "Show Target Frame on attack"

    • Uncheck "Enable Line Missile Display"

    • Uncheck "Show Attack Range"

Make sure to test any changes in a custom game first!

Update your graphics card drivers

Video card driver updates include vital bug fixes and optimizations to keep the hardware on par with the games it's trying to run. The process for updating graphics cards changes based on the manufacturer, so the first step is to identify your card:

  • Press [Windows Key] + R (this will open up a "Run" window)

  • Type "dxdiag" and hit Enter

  • Select the Display tab

  • You'll see the name and manufacturer of your card in the top left corner of the window

NVIDIA, AMD, and Intel are the three most common graphics card manufacturers. You can find programs that will automatically update your drivers for those companies here:

Prevent hardware overheating

An overheating processor, video card, or laptop can cause lag and game crashes as a game progresses. You can use a program to see how hot your components get during use. Let the program run during a League game and check the "Max" temperature column for each piece of hardware. If any temperature rises above 80 celsius (176 fahrenheit), we recommend investing in a new cooling system. You should also make sure your fans and vents are clean with a can of compressed air.

Check your network connection

It's possible a disrupted network connection is the source of your lag. You can take a few simple steps to make sure your network is operating at peak:

  • If you're using wi-fi, set up a wired internet connection

  • Close any connection-heavy programs, such as music, voice chat, or video streaming services

Attempting to Reconnect

A box with the message "Attempting to Reconnect" often pops up during games with severely disrupted connections. While this message is displayed, the game is trying to "catch up" on missing data. You may see your champion freeze in place or keep moving while everything else is frozen.

You can check with your ISP to see if there are general network issues in your area. After that, you'll need to run through your connection setup to pinpoint the problem. Test your connection in a custom game to make sure you can connect without incurring a LeaverBuster penalty.

Switch to a wired connection

If you're using wi-fi, switching to a LAN cable is the best way to improve your connection. You'll see reduced packet loss and smoother play.

Close connection-heavy programs

Video and music streaming and many voice chat programs can increase the load on your connection. This can be even worse if you share a network with others. Try closing these programs before playing League.

Temporarily disable firewalls

If you've installed a third-party firewall, you'll need to disable it manually. To disable the Windows firewall, follow these steps:

  • Click on Start

  • Click on Control Panel

  • Click on System and Security

  • Click on Windows Firewall

  • Click on "Turn Windows Firewall on or off" (You might need to provide the Administrator password here)

  • Under each network location, select the "Turn off Windows Firewall" option

Router issues

Rarely, your router may be a source of issues.

  • Try a reboot-unplug your router, wait fifteen seconds, then plug it back in.

System Requirements



  • 2 GHz processor (supporting SSE2 instruction set or higher)

  • 1 GB RAM (2 GB of RAM for Windows Vista and newer)

  • 8 GB available hard disk space

  • Shader version 2.0 capable video card

  • Screen resolutions up to 1920x1200

  • Support for DirectX v9.0c or better

  • Windows XP (Service Pack 3 ONLY), Windows Vista, Windows 7, Windows 8, or Windows 10

    • We no longer support Windows XP Service Pack 1 or 2. Since Windows XP 64-bit doesn't have a Service Pack 3, you will need to upgrade to a more recent version of Windows to play League of Legends.

    • If you're using Windows XP 32-bit and you'd like to update to Service Pack 3, you can do so here.

    • Please note: We can only support genuine copies of Microsoft Windows.


  • 3 GHz processor

  • 2 GB of RAM (4 GB of RAM for Windows Vista and higher)

  • 12 GB available hard disk space

  • Nvidia GeForce 8800/AMD Radeon HD 5670 or equivalent video card (Dedicated GPU with 512MB or higher Video Memory(VRAM))

  • Support for DirectX v9.0c or better.

  • Windows XP SP3, Windows Vista, Windows 7, Windows 8.1, or Windows 10 with the latest service pack installed

  • The latest update to .NET Framework from Microsoft

  • Please note: We can only support genuine copies of Microsoft Windows.

ISP (Internet Service Provider) Issues

Send your logs to Customer Support so we can forward them to your ISP.

For us to further assist you, we would need you to provide the following information accurately:

  • Current Location:

  • Internet Service Provider (ISP):

  • ISP Bundle and Variant:

  • IP Address (through

  • Screenshot of your Pathping* and Traceroute** Result

*To get your pathping, press Start > kindly type “cmd” on your Search bar, press Enter and type "pathping" then Enter. Wait until it states "completed". Then right click on the window, click Select all, then press ctrl+c and paste it on Notepad. Run cmd again and to get traceroute.

**To get your traceroute, press Start > kindly type “cmd” on your Search bar, press Enter and type "tracert" then Enter. Wait until it states "completed". Then right click on the window, click Select all, then press ctrl+c and paste it on the Notepad with the Pathping.

 Please send the following information to or by checking the most recent Central Thread in the forum’s Help & Support section.