NextGen Fun
NextGen Fun is a BigCommerce theme by Lonestar Templates ($195). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 67 for mobile speed and 65 for desktop speed, 90/90 for SEO and 87/82 for accessibility (mobile/desktop, 0–100).
Mobile55

Desktop76

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 67 | 65 |
| SEO | 90 | 90 |
| Accessibility | 87 | 82 |
| Best practices | 67 | 71 |
Single preset · measured 30 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — NextGen-Fun home page
Mobile
Speed 55 · 45 points to gain
- −24.3 Cumulative Layout Shift medium effort
- −18 Largest Contentful Paint medium effort
- −1.7 Speed Index medium effort
- −0.8 First Contentful Paint medium effort
- −0.6 Total Blocking Time medium effort
- 450 ms Reduce unused CSS high effort
- 450 ms Reduce unused JavaScript high effort
- 150 ms Minify JavaScript low effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 93 · 7 points to gain
- −3.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.1 Touch targets do not have sufficient size or spacing. medium effort
- −1.3 Document does not have a main landmark. medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Serves images with low resolution low effort
Desktop
Speed 76 · 24 points to gain
- −22 Cumulative Layout Shift medium effort
- −2.2 Largest Contentful Paint medium effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 88 · 12 points to gain
- −4.3 Input buttons do not have discernible text. medium effort
- −3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3 Touch targets do not have sufficient size or spacing. medium effort
- −1.3 Document does not have a main landmark. medium effort
Best practices 81 · 19 points to gain
- −19.2 Uses deprecated APIs medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| NextGen-Fun default demo ↗ | 67 | 90 | 87 | 65 | 90 | 82 | 2026-11-07 |
| category ↗ | 86 | 92 | 90 | 73 | 92 | 81 | 2026-11-07 |
| home ↗ | 55 | 92 | 93 | 76 | 92 | 88 | 2026-11-07 |
| product ↗ | 59 | 85 | 78 | 46 | 85 | 76 | 2026-11-07 |