System Response Time Guidelines

5 August 2024 by Phillip JohnstonGeneral response time targets: ≤ 100ms response times is about the limit for having the user feel the system is reacting instantly 250ms is around the threshold where a system starts to feel sluggish 1 second is about the limit for the user’s flow of thought to stay uninterrupted, even though the user will notice the delay. No special feedback is necessary when (100ms < delay ≤ 1 second), but the sluggishness of the system will be noticed. Beyond one second, start providing an busy or progress indicator. 10 seconds is about the limit for keeping the user’s attention focused …

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