📱 Touch Input Latency Tuning (April 2026)
This tuning pass focused on the time between player touch and visible in-game reaction. Several players reported that controls felt "mostly fine but occasionally heavy" on fast rounds. We reproduced this across Neon Snake, Lane Dash, and Spell Dodge, then measured tap-to-motion timing and consistency under sustained play.
Test Setup
- iPhone 13 (Safari), Pixel 7 (Chrome), and Windows 11 touch simulation.
- 60-second scenario scripts repeated 20 times per game.
- Measured first input after start, mid-session input, and late-session input.
- Included one-handed thumb play and rapid directional changes.
Measured Latency
| Metric | Before | After | Interpretation |
|---|---|---|---|
| Median tap-to-motion | 124ms | 91ms | Controls feel noticeably snappier on first contact |
| P95 tap-to-motion | 181ms | 132ms | Fewer "late" reactions in crowded scenes |
| Directional misread rate | 6.2% | 2.8% | Swipe disambiguation became more reliable |
| Quick retry control-ready time | 0.74s | 0.44s | Input listener lifecycle cleaned up on restart |
Implemented Changes
We narrowed the gap between input event handling and state update, and we reduced contention in scenes where effects and controls were competing in the same frame budget. We also refined swipe intent thresholds so short corrective gestures are not interpreted as full directional commits. This particularly helped one-handed smartphone play, where micro-adjustments are common.
Another change was startup readiness. Some games accepted input just before the UI fully transitioned into active state, creating inconsistent first moves. We now gate activation more clearly and surface only one valid start moment, which improves predictability without slowing pace.
Practical Effect on Players
- Movement feels more immediate in short sessions and high-pressure situations.
- Fewer accidental direction commits when thumbs make tiny corrective swipes.
- More confidence in first-action timing after pressing Play or Retry.
- Lower frustration from "I touched but it moved late" moments.
Next Step
The next log will compare latency behavior across frame drops to evaluate whether responsiveness still holds during stress spikes. We will publish per-game input stability notes so players can see where each title is strongest and where tuning is still ongoing.