Disclosure: This article was generated with AI for the FrameSprite team, which has a commercial interest in FrameSprite. It received a separate AI editorial review against the cited sources. Executed synthetic fixtures are identified with their runtime and limits; no other editor, engine, production or performance test is implied.
If a tiny correction leaves a dot or waits until the pointer moves farther, test the Freehand Brush tool's smoothing and Stabilizer Delay settings first. Delay controls a spatial dead zone around the cursor. That behavior can feel like slow rendering, especially when repairing a few pixels, but it needs a different diagnosis from a heavy brush or a display driver problem.
Key Takeaways
- Compare smoothing modes with the same brush, canvas, zoom, and input device.
- Treat a movement threshold separately from elapsed-time lag.
- Record the Krita version because stabilizer controls changed in 5.3.
Reproduce the smallest failing gesture
Save the working file and create a disposable paint layer. Choose a simple brush preset, keep its size fixed, and make three gestures: a tap, a short line, and a longer line. Record whether the start waits for distance, whether the middle trails the cursor, and whether the stroke changes after pen-up. Do not change the renderer and tablet settings at the same time.
The Freehand Brush reference documents No Smoothing, Basic, Weighted, and Stabilizer modes. Stabilizer averages input and draws behind the cursor; its Delay option defines the dead-zone size. The page also notes that 5.3 replaced the stabilizer's old Distance control with sample counts at maximum and minimum speed. Match instructions to your installed interface.
Use a controlled comparison
Make the same gestures in this order, retaining a screenshot or brief recording of each result:
| Test | Keep fixed | What the comparison can isolate |
|---|---|---|
| No Smoothing | Brush, zoom, canvas, device | Whether the start delay persists without smoothing |
| Basic | Same conditions | Whether mild input smoothing changes the symptom |
| Weighted | Same conditions | Whether its own distance and ending settings matter |
| Stabilizer, Delay off then on | Same stabilizer strength | Whether the spatial dead zone explains short-stroke behavior |
This is a proposed manual matrix, not a benchmark performed for this guide. Use temporary settings and restore the preferred drawing setup afterward. A small-detail repair and a long contour may reasonably use different smoothing choices.
Separate distance from time
A conceptual dead-zone example helps explain why moving faster is not the only relevant variable:
radius = 5
positions = [0, 2, 4, 6, 9]
outside = [abs(x) > radius for x in positions]
assert outside == [False, False, False, True, True]
The synthetic Python 3.12.10/Pillow 13.0.0 fixture produced those Boolean values. It does not simulate Krita's algorithm, tablet sample rate, units, or timing. The input, results, and script make that limited scope explicit.
Follow the symptom that remains
If the initial wait disappears without Stabilizer Delay, choose a smaller dead zone or another smoothing mode for the repair. If the stroke starts promptly but changes after release, inspect Instant Preview and brush-finish changes. If animation playback is choppy while individual strokes respond normally, use the animation-cache diagnosis.
If the same delayed drawing persists with No Smoothing and a simple brush, record that result before testing a smaller document or another input device. Then consult Krita's display settings for renderer-specific investigation. A driver or rendering change should answer an observed remaining symptom, rather than serve as a universal fix.
Finally undo or delete the diagnostic paint layer and export a clean reference. The handoff checklist helps keep test marks and temporary settings out of the approved asset package.
Prepared by the FrameSprite Workflow Team. AI-assisted technical writing with a conceptual distance illustration; no tablet timing or Krita GUI performance was measured. Editorial method · Corrections.
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