How to Reduce Input Lag for Competitive Gaming
Input lag is the total delay from your hand to the pixel. Here is where the milliseconds actually hide — GPU queues, display processing, sync settings — and the changes that genuinely remove frames of delay.
Input lag is the time between a click or movement and the matching change on screen. Every part of the chain adds a little: the mouse reports, the game simulates, the GPU renders, the display draws. You cannot make any single part instantaneous, but the total is built from a handful of milliseconds each, and a few settings silently add whole frames to it.
This guide splits the chain into its real components, shows where the milliseconds concentrate, and lists the changes in order of impact. It focuses on PC; console options are noted where they exist.
Know your frame budget
Refresh rate sets the stage. One frame takes:
| Display | Frame budget |
|---|---|
| 60 Hz | 16.7 ms |
| 144 Hz | 6.9 ms |
| 240 Hz | 4.2 ms |
Two facts follow. First, rendering more frames per second is the single biggest latency reduction available — going from 60 to 144 FPS cuts per-frame delay by more than half, far beyond what any peripheral change can achieve. Second, settings that add even one frame of queue at 144 Hz cost you 6.9 ms, which is larger than the difference between a good and an average mouse.
Mouse: cheap wins, honestly small
- Polling rate 1000 Hz in the driver software. Modern wireless gaming mice sustain this without issue; the old "wireless is slower" reputation belongs to a previous decade.
- Disable "Enhance pointer precision" in Windows mouse settings. It is mouse acceleration, and it adds a smoothing layer between your hand and the game.
- Enable raw input in the game where the option exists. It bypasses the OS cursor curve entirely.
These changes are correct and nearly free, but honest expectations: together they are worth a few milliseconds, not a frame. They make aim more consistent more than they make it faster.
Display: where hidden frames live
TVs and monitors ship with processing tuned for movies, not games. In the display's own menu: enable the game mode, turn off motion smoothing (also called motion interpolation, TruMotion, MotionFlow), turn off dynamic contrast, and leave response-time overdrive at the middle setting — the highest setting causes overshoot ghosting that can look worse than no overdrive at all.
Sync settings: V-Sync, G-Sync, FreeSync and caps
Classic V-Sync holds rendered frames until the display is ready, which queues frames and adds noticeable delay. Variable sync (G-Sync / FreeSync) removes tearing without holding frames, and it performs best with a frame cap slightly below the refresh rate — around 141 FPS on 144 Hz, so the cap engages before the variable range runs out.
NVIDIA Reflex and AMD Anti-Lag squeeze the CPU-to-GPU pipeline directly and are worth enabling in every supported title. If the game supports none of these, in-engine FPS caps plus borderless-with-"Optimizations for windowed games" is the sane fallback on Windows 11.
Fullscreen vs borderless: true exclusive fullscreen historically had the lowest latency, but on Windows 11 with the windowed-games optimization enabled, borderless is close enough that the convenience wins. What you should never do is play a competitive shooter in windowed mode with the optimization off.
Windows and GPU driver settings
- Hardware-accelerated GPU scheduling on (Settings → System → Display → Graphics). Test both states on older GPUs; a minority of systems lose a little performance with it on.
- Power plan set to Best performance, and laptops plugged in — throttled CPUs add whole frames of simulation delay.
- NVIDIA control panel: Low Latency Mode Ultra, or AMD Anti-Lag in the driver. These cap the render queue to about one frame.
Network lag is a different problem
Sluggish mouse movement is local delay; rubber-banding enemies and hit registration complaints are network. The fixes differ: wired ethernet over Wi-Fi, servers under about 50 ms ping, and attention to jitter rather than just average ping. If your mouse feels fine but the game world stutters around you, none of the settings above will help — that is a connection problem.
Ranking the changes by impact
- Higher and steadier FPS (frame budget is king).
- Display game mode + processing off.
- Reflex / Anti-Lag / low-latency driver modes.
- Variable sync with a cap just below refresh.
- HAGS on, high-performance power plan.
- Mouse polling, raw input, pointer acceleration off.
Measure once before and after: record your screen at 240 FPS while clicking, and count frames between the mouse light and the muzzle flash. Even a rough count tells you whether a change helped, and it beats trusting forum advice that was written for someone else's hardware.
