How to Reduce Monitor Input Lag: Settings and Tweaks

What input lag is and where it comes from

Input lag is the time it takes from the moment you press a button or move the mouse until the monitor shows the result. It is a pipeline: the input device, the computer, the graphics card, the connection cable, and the display panel each add a small amount of delay. The monitor's share is usually the largest, but it is also the part you can most easily reduce with settings.

For gaming, especially competitive titles, a smaller total latency means the image on screen matches your actions more closely. The difference between a poorly configured display and a well configured one can be large enough to feel. For basic office work, input lag is not a concern. The article what input lag is explains the concept in depth with more detail.

Before changing anything, know that all monitors have some small amount of innate processing delay. You cannot bring it to zero, but you can remove settings that add unnecessary delay.

Monitor settings that reduce lag

The first place to look is the monitor's own on-screen display (OSD) menu. Modern gaming displays include modes or features that trade a bit of image quality for lower latency.

The most effective OSD options to check and enable:

• Game Mode or Low Latency mode: a preset that disables most image processing; individual names vary by manufacturer.
• Overdrive (often labeled Response Time or OD): raises the voltage applied to liquid crystal pixels, which makes them change state faster. On many panels this visibly reduces motion blur. The article monitor overdrive covers what it does and how to set it.
• Turn off heavy processing like noise reduction, dynamic contrast, and motion smoothing. These features apply post-processing to the image, which takes time.
• Refresh rate: set the monitor to its maximum refresh rate in the operating system and in the GPU driver, not the desktop default.

Connection and bandwidth choices

The cable and port carrying the video signal matter for how fast a frame can travel to the panel. The biggest factor is that the connection must support the monitor's native resolution and refresh rate at full color depth. If the link is under-provisioned, the display may fall back to a lower data rate and refresh rate.

HDMI 2.2 adds features directly aimed at latency. Variable Refresh Rate (VRR) reduces or eliminates lag, judder, and frame tearing for more fluid and detailed gameplay. Auto Low Latency Mode (ALLM) lets the ideal latency setting be set automatically. Quick Frame Transport (QFT) reduces latency for smoother no-lag gaming and real-time interactive VR.

On the GPU side, NVIDIA's G-SYNC displays are designed to eliminate tearing, stuttering, and input lag. G-SYNC Compatible displays, validated by NVIDIA for a basic VRR experience, provide tear-free and stutter-free gaming over DisplayPort or HDMI. Choosing a display with a certified adaptive sync solution is one of the most reliable ways to keep latency low.

If your monitor and GPU both support DisplayPort, that is generally a good choice for high refresh rates at high resolutions. For HDMI, a port with VRR and ALLM support is preferable for gaming. The articles HDMI versions and DisplayPort explain which version to look for.

Related guide: Best gaming monitors.

Windows and GPU driver settings

After the monitor itself, the operating system and graphics driver offer a few relevant controls.

Set the refresh rate in Windows: Settings > System > Display > Advanced display settings, then choose the highest available rate. If the list only shows 60 Hz, the connection may not support the full rate.

Disable any power saving or battery optimization for the display if you are on a laptop. On some systems, HDR and certain video processing features can lower responsiveness. Windows may disable HDR automatically when running on battery power, which can affect the experience.

In the GPU driver (NVIDIA, AMD, or Intel), enable the low latency mode if available, and set the refresh rate and output format for the connected display. Disable any GPU-side image sharpening or post-processing that adds a full-frame delay. These driver features can add a few milliseconds each.

Cap the frame rate: In games, limiting the frame rate to the monitor's maximum refresh rate (or a value slightly below it) can reduce input lag. Running uncapped frame rates can also cause tearing, which makes motion look less fluid. The article adaptive sync covers this in more detail.

If you play with game mode or dynamic contrast on a TV instead of a monitor, check the TV's input label setting: many TVs have a 'PC' or 'Game' label that disables extra processing.

Game-specific settings

In-game settings can also affect the latency between input and rendered frame:

Disable vertical sync (VSync) unless you are using adaptive sync: forced VSync at a fixed frame rate adds up to a full frame of delay. The article VSync vs adaptive sync explains the tradeoff.

Set the in-game frame rate limit: a cap at the monitor's refresh rate, or slightly below, gives more consistent frame times. A fluctuating frame rate can feel less responsive than a stable one.

Turn off post-processing effects that require the GPU to run extra passes, such as depth of field and motion blur. These do not directly add monitor lag but increase rendering time per frame.

Use the game's built-in latency reduction option if it has one: modern games often provide a frame-limiter plus render-ahead setting. Render ahead controls how many frames the CPU queues ahead of the GPU; using one frame, often labeled 'Pre-rendered frames = 1', reduces delay.

For competitive games, prioritize frame rate over graphics quality: the GPU finishes frames sooner if it does less work.

The article monitor response time explains the different of pixel response and input latency.

Refresh rate, response time and overdrive balance

The most important monitor decisions for lag are the refresh rate and the panel's overdrive. A higher refresh rate means each frame is displayed sooner after it is rendered. At 60 Hz a frame is shown every 16.7 ms, at 144 Hz every 6.9 ms, and at 240 Hz every 4.2 ms. The article refresh rate covers the numbers in depth.

Overdrive makes pixels change state faster, reducing visible trailing on fast-moving objects, but if set too high it can overshoot and add artifacts. The best setting is usually the one right before overshoot becomes visible; this is often called 'the sweet spot' and varies by panel.

For very high refresh rate panels, the connection bandwidth becomes the deciding factor. To run 2560x1440 at 240 Hz or 3840x2160 at 120 Hz, HDMI 2.1 or DisplayPort 1.4 with DSC is required; older ports will limit the refresh rate.

What to pick based on your gaming priorities

Questions

Does a higher refresh rate always reduce input lag?

Yes, in the sense that frames are displayed sooner after they are rendered. At 240 Hz a frame appears about 4 ms after it is ready, while at 60 Hz it waits up to 16.7 ms. However, the GPU must be able to render frames fast enough to fill that rate; a high refresh monitor with a low frame rate is not a low latency setup.

What is the best overdrive setting for the lowest input lag?

The overdrive setting that reduces pixel transition time without overshoot. On most monitors this is 'Normal', 'Medium', or one step below the highest option. Setting it too high creates visible bright or dark trails. The monitor overdrive article explains how to find the sweet spot.

Should I turn VSync on or off to reduce input lag?

With a fixed refresh rate and no adaptive sync, VSync adds a small amount of delay because frames are held until the next refresh. With a monitor that supports VRR (G-SYNC, FreeSync, HDMI VRR), you can leave VSync on in many games and the monitor will sync to the frame rate, keeping latency low. The VSync article explains it.

Is display input lag the same as response time?

No. Response time measures how fast a pixel changes color, usually from grey to grey or black to white. Input lag measures the delay from input to visible image. The two are independent: a slow pixel can have low input lag, and a fast pixel transition does not guarantee low input lag. The response time article has more.

Does HDR add input lag?

It can. Some monitors apply extra processing when HDR is enabled, slightly increasing the delay. If you notice a difference, compare the gaming mode with HDR on and off. Windows may also disable HDR automatically on battery power on laptops.

Which connection is best for low input lag: HDMI, DisplayPort, or USB-C?

The connection type matters less than its bandwidth and features. Any port that supports the monitor's native resolution and refresh rate will transmit frames with negligible added delay. HDMI with VRR and ALLM and DisplayPort with adaptive sync both work well. USB-C with DisplayPort alt mode also carries a video signal; its latency depends on the alt mode implementation. If a port is under-provisioned and drops the refresh rate, that adds more delay than the port itself.