Understanding Motion Blur & Ghosting
What is Ghosting?
Ghosting is a visual artifact where a moving object leaves a trail of fading copies behind it. This happens when your monitor's pixels can't change color fast enough to keep up with the moving image. It's common on VA panels and older IPS screens.
Response Time (GtG)
Gray-to-Gray (GtG) measures how long it takes a pixel to change from one shade of gray to another. A lower number (e.g., 1ms) is better. If the response time is slower than the refresh rate window, you get blur.
How to Interpret This Test
- Sharp Image: If you can clearly see the details of the moving UFO/text, your monitor has excellent motion clarity.
- Blurry Trail: A long trail behind the object indicates slow pixel response times.
- Inverse Ghosting (Corona): If you see a bright/white halo around the moving object, your monitor's "Overdrive" setting is too high. Try lowering it in your monitor's OSD menu.
Frequently Asked Questions
Why does the UFO look stuttery?
Stuttering usually means your browser isn't syncing with your monitor's refresh rate. Close other tabs and ensure hardware acceleration is enabled. On a 60Hz monitor, 60fps is perfect. On 144Hz, you should see 144fps.
How do I fix ghosting?
Check your monitor's OSD menu for "Overdrive," "Response Time," or "Trace Free" settings. Set it to "Medium" or "Fast" (avoid "Fastest" as it often causes inverse ghosting). Also, ensure you are running at your monitor's maximum refresh rate.