Response Time Limit

Response time limits are the established psychological thresholds that dictate how users perceive system delays. Research shows there are critical boundaries for user attention and patience: interactions under 100ms feel instantaneous, while delays over 1 second are enough to interrupt a user's flow of thought, and delays over 10 seconds will likely lead to task abandonment. These well-documented limits form the scientific basis for the "Good," "Needs Improvement," and "Poor" thresholds used in modern web performance metrics like LCP and INP.