Input Lag Chain Deep: Where Delay Actually Builds Up (Click-to-Photon)
Input lag is not one setting. It’s the total delay from action to screen: device polling, OS scheduling, game loop timing, render queue, and display processing. The fastest wins usually come from removing hidden processing and stabilizing the queue.
The Chain (Simple)
- Input device and polling stability.
- OS scheduling and background load.
- Game loop and frame pacing.
- Render queue buildup (GPU-bound delay).
- Display processing and scanout timing.
Fix Order That Works
- Enable Game Mode and disable display processing traps.
- Stabilize frame pacing with a realistic cap.
- Reduce render queue buildup (GPU spikes).
- Then consider latency features if they improve consistency.
Rule: you don’t ‘optimize’ lag by adding complexity. You reduce the chain.
Related Guides
Fix Input Lag FastNo-placebo baseline.
Render Queue BasicsQueue delay explained.
Latency Features ExplainedWhen features help.
Display Processing TrapsHidden latency sources.
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