How to Reduce Input Lag in Windows — Complete Guide for Gamers

You click. Your character reacts 50ms later. In competitive gaming, that delay is the difference between winning and losing. Input lag comes from multiple sources — your mouse, Windows processing, GPU rendering pipeline, and display. This guide targets every layer.

Here are 10 proven methods to reduce input lag in Windows. Combined, these can cut your end-to-end latency by 20-40ms.

1. Disable Mouse Acceleration

Impact: HIGH. Mouse acceleration (called "Enhance pointer precision" in Windows) changes your cursor speed based on how fast you move the mouse. This makes aiming inconsistent and unpredictable — the enemy of muscle memory.

2. Fix USB Power Management

Impact: MEDIUM. Windows can put USB devices into power-saving mode, causing your mouse or keyboard to momentarily "wake up" when you use them. This creates tiny but noticeable input delays.

Also disable USB selective suspend:
Power Options → Change plan settings → Change advanced power settings
→ USB settings → USB selective suspend → Disabled

3. Set Timer Resolution to 0.5ms

Impact: HIGH. Windows' default timer resolution is 15.6ms — meaning your inputs can wait up to 15.6ms before being processed. Forcing 0.5ms dramatically improves input responsiveness and frame pacing.

Registry: HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\kernel
Set GlobalTimerResolutionRequests = 1

Then use a tool (or DRX Optimizer) to request 0.5ms resolution at runtime.

4. Disable V-Sync

Impact: HIGH. V-Sync synchronizes your frame output to your monitor's refresh rate. This eliminates screen tearing but adds 1-3 frames of input lag (7-20ms at 144Hz). For competitive gaming, it's unacceptable.

5. Use Fullscreen Exclusive Mode

Impact: MEDIUM. Borderless windowed mode routes frames through the Windows compositor (DWM), adding a frame of latency. Fullscreen exclusive bypasses DWM entirely.

6. Enable NVIDIA Reflex / Low Latency Mode

Impact: HIGH (NVIDIA only). NVIDIA Reflex reduces the render queue, ensuring frames are submitted to the GPU just-in-time instead of being queued up. This can cut input lag by 20-30ms in supported games.

7. Maximize Mouse Polling Rate

Impact: MEDIUM. Polling rate determines how often your mouse reports its position to Windows. 125Hz = 8ms delay, 500Hz = 2ms, 1000Hz = 1ms. Higher is always better for input lag.

8. Set Ultimate Performance Power Plan

Impact: MEDIUM. The Balanced power plan can throttle CPU clock speeds, adding processing latency to every input event. Ultimate Performance keeps your CPU at max frequency.

powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61

Then select "Ultimate Performance" in Control Panel → Power Options.

9. Disable Desktop Window Manager Compositing

Impact: MEDIUM. DWM adds a compositing layer to render your desktop. In Windows 11, you can't fully disable DWM, but using fullscreen exclusive mode bypasses it. Additionally, disabling visual effects reduces DWM overhead.

10. Optimize Monitor Response Time

Impact: MEDIUM. Your monitor's overdrive/response time setting controls how fast pixels change color. Set it to the fastest mode that doesn't cause visible overshoot (inverse ghosting).