Performance
Lab data — simulated mobile 24
Before 26 After
Lab metrics
Metric
Before
With Turbulence
Speed Index SI
Before: 7.2 s
After: 8.9 s
First Contentful Paint FCP
Before: 5.6 s
After: 6.3 s
Largest Contentful Paint LCP
Before: 10 s
After: 17 s
Cumulative Layout Shift CLS
Before: 0.145
After: 0.143 -1%
Total Blocking Time TBT
Before: 2.9 s
After: 1.3 s -54%
What changed (4)
- Resource hints injected Browser knows what to fetch early
- CSS and JavaScript minified and edge-cached Stylesheets and scripts load faster with smaller, cached files
- scripts Improves page load speed and visitor experience.
- Font display swap + DNS preconnect Text shows up while fonts load
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.