Performance
Lab data — simulated mobile 17
Before 84 After
Lab metrics
Metric
Before
With Turbulence
Speed Index SI
Before: 17 s
After: 5.3 s -69%
First Contentful Paint FCP
Before: 9.6 s
After: 1.9 s -81%
Largest Contentful Paint LCP
Before: 19 s
After: 1.9 s -90%
Cumulative Layout Shift CLS
Before: 0.193
After: 0.000 -100%
Total Blocking Time TBT
Before: 3.2 s
After: 426 ms -87%
What changed (2)
- picperf-banner Improves page load speed and visitor experience.
- Resource hints injected Browser knows what to fetch early
How we measured this
- 1. We fetched your page and scored it with PageSpeed Insights (mobile, lab data).
- 2. We re-fetched it through a Turbulence preview environment that applies our transformation pipeline.
- 3. We scored the result with PageSpeed Insights again.
- 4. The deltas above are the difference — a directional estimate, not a forecast. First visits, geographic location, network conditions, and JS-rendered content all affect real-world results.