Claude performance report · http://infinitalab.com/materials/metals/
● Needs urgent work Source: Claude · PageSpeed Insights Tested: 3 Aug 2026 · daily Devices: mobile & desktop By: Baivab, Growth
Perf · Mobile
42
/ 100 · poor
Perf · Desktop
98
/ 100 · good
Mobile LCP
7.5s
target < 2.5s
Mobile TBT
1402ms
target < 200ms
Page weight
5.0 MB
mobile
The headline
On mobile this template scores 42 against 98 on desktop. Mobile is held back by main-thread blocking (TBT 1402ms) from 1.8 MB of JavaScript. Mobile LCP is slow at 7.5s.
Scores & Core Web Vitals
Metric
Mobile
Desktop
Target
Performance
42
98
90+
Accessibility
87
86
90+
Best Practices
56
81
90+
SEO
85
85
90+
Largest Contentful Paint
7.5s
0.9s
< 2.5s
Cumulative Layout Shift
0.04
0.02
< 0.1
Total Blocking Time
1402ms
0ms
< 200ms
First Contentful Paint
3.2s
0.8s
< 1.8s
Speed Index
4.7s
0.9s
< 3.4s
Time to First Byte
24ms
31ms
< 0.8s
Page composition
Metric
Mobile
Desktop
Total page weight
5.0 MB
3.6 MB
Images
2.4 MB
3.3 MB
JavaScript
1.8 MB
0.0 MB
Third-party bytes
—
—
Requests (total)
161
34
Script requests
43
3
Image requests
60
18
DOM elements
—
—
CPU time
5.3s
0.5s
Prioritised recommendations (click to expand)
P1Cut the mobile JavaScript bundle›
Mobile TBT is 1402ms from 1.8 MB of JavaScript. Defer and code-split non-critical JS, remove unused libraries, audit third-party scripts.
P2Improve mobile LCP›
Mobile LCP is 7.5s. Preload the hero image, reduce server response time and remove render-blocking CSS/JS.
P2Optimise images›
Compress and correctly size images, serve WebP/AVIF and lazy-load below-the-fold media.
P3Force HTTPS›
This URL loads over http (mixed content). Redirect to https and update internal links.
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.