Key takeaways
- Open the telemetry options in the Interface settings and show FPS, latency and packet loss. High ping or packet loss is network lag, not input lag, and needs different fixes.
- Use the NVIDIA app or AMD Software overlay to watch GPU usage. If it sits at 97-99% during fights, you have a render queue and the Reflex and frame-cap steps will help most.
- On NVIDIA cards, the NVIDIA app overlay can show a PC Latency figure in games with Reflex. Note it before and after each change so you can see what actually works on your system.
- Confirm your monitor runs at its full refresh rate in Windows Display settings and in Warzone’s Screen Refresh Rate option.
To reduce input lag in Call of Duty: Warzone, set Display Mode to Fullscreen Exclusive, turn V-Sync (Gameplay) off, set NVIDIA Reflex Low Latency to On + Boost, leave frame generation off, and keep your GPU from sitting at 99% usage by capping frames or lowering the most expensive settings. Then fix the parts outside the game: a 1000 Hz mouse, a wired controller, and a monitor in its low-latency game mode. The steps below explain why each change matters, so you can tell real input lag apart from network problems that only feel similar.
What input lag in Warzone is made of
Input lag is the time between pressing a button and seeing the result on screen. In Warzone it comes from four stages: your mouse or controller reporting the input, the game simulating it, the CPU and GPU rendering the frame, and the monitor displaying it. Since the Black Ops 7 integration, Warzone shares its settings menu and engine with Black Ops 7, so the Display page in Settings, Graphics holds most of the options that affect the render and display stages.
The render stage is where most settings changes pay off. When the GPU is fully loaded, the CPU prepares frames faster than the GPU can draw them, and those frames wait in a queue. Every queued frame adds one full frame time of delay.
| Frame rate | Frame time | Extra delay with 1 queued frame | Extra delay with 2 queued frames |
|---|---|---|---|
| 60 FPS | 16.7 ms | 16.7 ms | 33.3 ms |
| 100 FPS | 10.0 ms | 10.0 ms | 20.0 ms |
| 144 FPS | 6.9 ms | 6.9 ms | 13.9 ms |
| 200 FPS | 5.0 ms | 5.0 ms | 10.0 ms |
| 240 FPS | 4.2 ms | 4.2 ms | 8.3 ms |
This is frame-time arithmetic, not a measurement, but it shows the two levers: raise the frame rate so each frame is shorter, and empty the queue so frames do not wait. A player at 100 FPS with a two-frame queue carries about 20 ms of avoidable delay, which is more than the difference between a 144 Hz and a 240 Hz monitor.
Checks before you change anything
- Open the telemetry options in the Interface settings and show FPS, latency and packet loss. High ping or packet loss is network lag, not input lag, and needs different fixes.
- Use the NVIDIA app or AMD Software overlay to watch GPU usage. If it sits at 97-99% during fights, you have a render queue and the Reflex and frame-cap steps will help most.
- On NVIDIA cards, the NVIDIA app overlay can show a PC Latency figure in games with Reflex. Note it before and after each change so you can see what actually works on your system.
- Confirm your monitor runs at its full refresh rate in Windows Display settings and in Warzone’s Screen Refresh Rate option.
The Warzone settings that cut input lag
| Setting | Value | Why it helps |
|---|---|---|
| Display Mode | Fullscreen Exclusive | The game controls the display directly instead of going through the Windows desktop compositor |
| Screen Refresh Rate | Your monitor’s maximum | Shorter time between screen updates |
| NVIDIA Reflex Low Latency | On + Boost (On for laptops) | Keeps the render queue near empty; Boost holds GPU clocks up in CPU-limited moments |
| V-Sync (Gameplay) | Off | V-Sync holds frames until the next refresh, adding delay |
| V-Sync (Menus) | Off or On | No effect on gameplay; On only keeps menus cooler and quieter |
| Custom Frame Rate Limit (Gameplay) | 3-5 below refresh with G-SYNC/FreeSync, or a value your PC holds steadily | Keeps GPU usage under 99% and frame times even |
| Frame Generation (DLSS or FSR) | Off | Generated frames make the counter higher but input still follows the real rendered frame rate, plus a hold-back delay |
| Upscaling/Sharpening | DLSS or FSR Quality if GPU-limited, FidelityFX CAS at native otherwise | Upscaling raises the real frame rate, which lowers latency, at a small cost in clarity |
| Render Resolution | 100 | Let upscaling handle scaling instead of blurring the image |
| Video Memory Scale | About 70-80 | Leaves VRAM headroom so the game does not hitch when memory fills |
| On-Demand Texture Streaming | Minimal (or the lowest option your menu shows) | Less real-time downloading, fewer mid-match hitches on slower connections |
| Shader Quality, Screen Space Reflections | Low / Off | Two of the heaviest GPU settings; lowering them frees frame time |
Why Reflex matters more than any single graphics setting
Reflex lets the game time the CPU’s work so frames are prepared just as the GPU becomes ready, which keeps the queue near zero even when the GPU is fully loaded. The Boost mode also stops the GPU from lowering its clocks in CPU-heavy scenes, such as the early circles of a match with many players nearby. On a laptop, use plain On, because Boost raises power draw and heat, which can lead to throttling and lower frame rates later in a session.
AMD Radeon users
Reflex is NVIDIA-only. On a Radeon card, use AMD Anti-Lag 2 if it appears in the Display menu; otherwise enable Radeon Anti-Lag for the game in AMD Software. Keep the driver current. The older Anti-Lag+ feature caused anti-cheat conflicts in several shooters in 2023 and was withdrawn, so ignore any guide that still recommends it.
The frame generation trade-off
Frame generation inserts AI-created frames between real ones. Suppose the GPU renders 80 real frames per second: the counter may show about 160 FPS, but your input still lands on the 80 real frames, each 12.5 ms long, and the technique has to hold back one real frame to build the in-between image. Warzone feels smoother to watch but slower to aim, so leave it off for competitive play and use upscaling for extra frames instead.
Frame caps: picking the right number
With a G-SYNC or FreeSync monitor, cap a few frames below your refresh rate, such as 141 on 144 Hz, 162 on 165 Hz, or 237 on 240 Hz, so the game stays inside the variable refresh range without V-Sync. Without variable refresh, cap at a frame rate your PC holds through the busiest fights. If your FPS swings between 110 and 180, a steady 120 cap gives more consistent aim than an uncapped average of 150, because the queue never fills and frame times stay even.
Mouse, controller and monitor fixes
| Mouse polling rate | Report interval | Notes |
|---|---|---|
| 125 Hz | 8 ms | Default on many office mice; noticeably slower |
| 500 Hz | 2 ms | Acceptable, but rarely the best choice |
| 1000 Hz | 1 ms | The standard choice for Warzone |
| 4000 Hz | 0.25 ms | Small gain; adds CPU load, so check FPS stays stable |
| 8000 Hz | 0.125 ms | Best on fast CPUs; can cost FPS on older processors |
- Set the polling rate in your mouse software, keep wireless mice in their 2.4 GHz mode rather than Bluetooth, and keep any mouse acceleration or filtering option at zero.
- Play on a wired controller where possible. Wireless controllers can add a few milliseconds and pick up interference from crowded 2.4 GHz Wi-Fi.
- Switch the monitor or TV to its Game or low-latency mode, and use a moderate overdrive level; the most aggressive overdrive adds visible overshoot without lowering lag.
- Turn on Windows Game Mode and close recording tools you are not using.
When it is not input lag at all
If shots register late, enemies teleport, or the telemetry shows packet loss or jumpy ping, the problem is the connection. Use a wired Ethernet connection, pause downloads and streaming on the same network, and keep On-Demand Texture Streaming at its lowest option, because it downloads texture data while you play. Stutter that appears when VRAM is full can look like packet burst, so lowering Video Memory Scale or texture resolution often fixes “network” hitches that are really memory problems.
Quick order of operations
- Fullscreen Exclusive, V-Sync off, Reflex On + Boost (or Anti-Lag on AMD).
- Frame generation off; DLSS or FSR Quality only if the GPU is the limit.
- Cap frames below refresh with variable refresh, or at a level your PC holds.
- Mouse at 1000 Hz or higher, controller wired, monitor in game mode.
- Check telemetry for ping and packet loss before blaming your PC.
Hardware That Lowers Input Lag Further
Once the settings above are dialed in, most of the remaining delay in Call of Duty: Warzone comes from the monitor and mouse. A higher refresh rate and a high polling-rate mouse are the next steps.
AOC 27" Gaming Monitor QHD 260Hz Overclocked IPS NVIDIA G-SYNC Q27G41ZE
Included for 'How to Reduce Input Lag in Call of Duty: Warzone on PC' as a relevant option in this category; details come from the product listing.
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Logitech G PRO X Superlight 2 Wireless Gaming Mouse - Black
Included for 'How to Reduce Input Lag in Call of Duty: Warzone on PC' because the listing specifies Black, details this guide uses to compare options.
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Razer Viper V3 Pro Wireless Esports Gaming Mouse, 54g Lightweight, Black
Included for 'How to Reduce Input Lag in Call of Duty: Warzone on PC' because the listing specifies 54g Lightweight and Black, details this guide uses to compare options.
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