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Prism Analytics lifted mobile conversion 18% by fixing Brazil LCP.

Prism Analytics sells a usage analytics product to marketing teams. Their mobile conversion rate in Brazil was 38% below the global average. PagePulse's country-level RUM data revealed mobile LCP in Brazil was 4x slower than the United States due to a missing CDN edge.

Key result

+18%

mobile conversion

Real user monitoring by device and country revealed our mobile LCP in Brazil was 4x slower. We fixed it and conversion jumped 18%.

James Liu
Founder, Prism Analytics
6.8s
Brazil mobile LCP before
1.7s
Brazil mobile LCP after
+18%
Mobile conversion lift
3
New CDN edges added

Challenges

  • 01Mobile conversion rate in Brazil was 38% below the global average.
  • 02No country-level RUM data to identify which geos were underserved.
  • 03Synthetic tests from the US office showed no problem at all.

Solutions

  • 01Used PagePulse's country segmentation to identify Brazil as the worst LCP region.
  • 02Added 3 new CDN edges in South America and reconfigured image optimization.
  • 03Set per-country LCP budgets to catch future regressions early.

Outcomes

  • 01Cut Brazil mobile LCP from 6.8s to 1.7s, a 4x improvement.
  • 02Lifted mobile conversion rate by 18% in the affected region.
  • 03Added per-country LCP budgets to prevent future regressions.

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