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Claude performance report · https://infinitalab.com/author/

● Needs urgent work
Source: Claude · PageSpeed Insights
Tested: 3 Aug 2026 · daily
Devices: mobile & desktop
By: Baivab, Growth

Perf · Mobile

/ 100 · poor

Perf · Desktop

/ 100 · good

Mobile LCP

21.0s

target < 2.5s

Mobile TBT

1270ms

target < 200ms

Page weight

2.9 MB

mobile

The headline

On mobile this template scores 40 against 99 on desktop. Mobile is held back by main-thread blocking (TBT 1270ms) from 1.8 MB of JavaScript. Mobile LCP is effectively broken at 21.0s.

Scores & Core Web Vitals

Metric	Mobile	Desktop	Target
Performance	40	99	90+
Accessibility	89	88	90+
Best Practices	73	100	90+
SEO	100	100	90+
Largest Contentful Paint	21.0s	0.9s	< 2.5s
Cumulative Layout Shift	0.01	0.02	< 0.1
Total Blocking Time	1270ms	0ms	< 200ms
First Contentful Paint	2.9s	0.8s	< 1.8s
Speed Index	6.2s	0.8s	< 3.4s
Time to First Byte	100ms	5ms	< 0.8s

Page composition

Metric	Mobile	Desktop
Total page weight	2.9 MB	0.5 MB
Images	0.1 MB	0.1 MB
JavaScript	1.8 MB	0.0 MB
Third-party bytes	—	—
Requests (total)	138	30
Script requests	44	2
Image requests	35	12
DOM elements	—	—
CPU time	4.6s	0.3s

Prioritised recommendations (click to expand)

P1Cut the mobile JavaScript bundle›

Mobile TBT is 1270ms from 1.8 MB of JavaScript. Defer and code-split non-critical JS, remove unused libraries, audit third-party scripts.

P1Fix broken LCP›

LCP is 21.0s on mobile. Investigate render-blocking resources, slow hero images and failed requests.

Source: Claude via Google PageSpeed Insights, 3 Aug 2026. Mobile: Slow 4G, Moto G Power. Lab results are single-run and vary run to run.