Measure timing and responsiveness signals to understand device performance.
It runs small timing checks to estimate responsiveness and latency.
Results reflect current load and power state rather than absolute hardware speed.
Performance impacts interactive tools, video calls, and heavy pages.
Timing signals are also used in some fingerprinting techniques.
Lower scores can result from battery saver modes or thermal throttling.
Repeat tests after closing heavy tabs for a cleaner baseline.
Use a stable power profile and avoid background tasks when testing.
Keep browser versions consistent across comparisons.
Background updates, tab sprawl, and extensions can slow down timing checks.
Network conditions can indirectly affect perceived performance.
These checks are synthetic and not the same as real application workloads.
Scores should be compared within the same device class.