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To reduce monitor ghosting, first identify what you see: a dim trail behind a moving object usually points to slow pixel transitions, while a bright or dark outline around it can indicate too much overdrive. Lower the monitor’s response-time or overdrive setting one step from its strongest mode, then compare the same scene at the refresh rate and frame rates you normally use. The fastest setting is not automatically the clearest.
Identify the motion artifact before changing settings
“Blur” can describe more than one effect, and the distinction helps you choose the right adjustment.
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- Trailing blur: A smear or trail behind a moving object can come from pixels taking too long to transition between colors. Pixel response time describes those transitions.
- Inverse ghosting or overshoot: A bright or dark corona around, or ahead of, a moving object can mean overdrive is pushing pixels past their target level. Overdrive speeds transitions by applying a stronger drive, but an aggressive setting can create this opposite-looking artifact.
- Persistence blur: Even when pixels transition quickly, a frame remains visible between refreshes. When your eyes track motion, that hold time can make objects look blurred. This is distinct from slow pixel transitions.
A refresh-rate change may reduce persistence blur, but it does not make each pixel transition faster. Likewise, changing overdrive cannot eliminate every source of motion blur.
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How to tune your monitor in a controlled way
- Establish a baseline. Choose a repeatable moving scene in a game or a motion test. Keep the game, resolution, cable or input, and frame-rate conditions steady so you can judge one change at a time.
- Confirm the refresh rate. Check that your source, connection, and monitor are running at the intended rate supported by all three. If the expected option is missing, consult the monitor manual: available refresh rates can depend on the input port.
- Reduce overdrive one step from its strongest mode. In the monitor’s on-screen display (OSD), look for a control named Response Time, Overdrive, OD, Trace Free, or something similar. Compare the result in the same moving scene. If bright or dark coronas lessen without excessive trailing, the lower mode may be a better balance.
- Repeat at your usual frame rates. A setting that looks acceptable at the monitor’s maximum refresh rate may produce overshoot when the game runs more slowly. If you use variable refresh rate (VRR), test across the frame-rate range you actually encounter, not just at one fixed rate.
- Check for variable overdrive. Some displays offer it to adjust overdrive as frame rates fluctuate. If yours does, compare its behavior with a less aggressive fixed mode. Availability and implementation vary by model; ASUS describes the feature as dynamically adjusting overdrive, which is a manufacturer description rather than independent validation.
- Try backlight strobing only if it suits your setup. If the monitor offers a strobing mode, use its manual to check supported refresh rates and whether it works alongside VRR. Compare the reduction in perceived blur with any loss of brightness or other visible artifacts.
Should you use the fastest overdrive setting?
Not by default. The strongest overdrive mode may reduce ordinary trailing blur, but if it creates visible overshoot, a slower preset can look clearer overall. Dell’s support guidance for Dell and Alienware products recommends trying a slower response-time mode when the fastest setting causes ghosting, and says users should experiment to find the setting that suits them. Dell’s ghosting and blurry-image troubleshooting FAQ.
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Judge the trade-off at your normal refresh rate and, for VRR, at lower frame rates you commonly reach. The best choice depends on the display’s behavior under those conditions, not just the preset name.
When backlight strobing may help
Backlight strobing briefly flashes the backlight to reduce how long each frame is visibly held. On supported monitors, that can improve perceived motion clarity by addressing persistence blur rather than speeding up pixel transitions. It is model-specific and may involve compromises in brightness, compatibility, usable refresh rates, or visible crosstalk—where image content appears as a faint duplicate.
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For example, NVIDIA’s ULMB 2 is a strobing feature for compatible monitors, not a general setting available on every display. Check NVIDIA’s ULMB 2 requirements and information and your monitor’s manual before relying on it. Do not assume strobing works with VRR or at your chosen refresh rate unless the product documentation says so.
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Monitor settings can change how motion looks, but they cannot change the panel’s underlying response behavior. RTINGS notes that a monitor’s response time cannot be changed by settings, although some settings may help improve motion handling. Its response-time guide explains the distinction between response-time blur, overshoot, and persistence blur, and reports that it was updated April 21, 2026: RTINGS’ monitor response-time test guide.
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If you are comparing replacement displays, look beyond a headline minimum such as “1 ms.” Prefer independent measurements of transition times and overshoot at refresh rates relevant to your use, including lower rates in your VRR range. Check dark transitions and whether overdrive remains well behaved as frame rates change; a single minimum figure does not show that balance.
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