Fuse
Fuse is a Shopify theme by UTD BV ($400). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 67 for mobile speed and 91 for desktop speed, 94/94 for SEO and 97/97 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 41 to 78.
Mobile64

Desktop85

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 67 | 91 |
| SEO | 94 | 94 |
| Accessibility | 97 | 97 |
| Best practices | 87 | 87 |
Median of 4 presets · measured 16 times since 2026-11-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Fuse home page
Mobile
Speed 64 · 36 points to gain
- −24.5 Largest Contentful Paint medium effort
- −6.3 Total Blocking Time medium effort
- −4.5 Speed Index medium effort
- 150 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 85 · 15 points to gain
- −8.1 Total Blocking Time medium effort
- −4.5 Largest Contentful Paint medium effort
- −2.5 Speed Index medium effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 95 · 5 points to gain
- −5 Buttons do not have an accessible name medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Clio demo ↗ | 78 | 96 | 96 | 81 | 96 | 96 | 2026-10-27 |
| category ↗ | 78 | 92 | 97 | 96 | 92 | 97 | 2026-10-27 |
| product ↗ | 77 | 100 | 95 | 66 | 100 | 95 | 2026-10-27 |
| Bond demo ↗ | 61 | 92 | 97 | 94 | 92 | 97 | 2026-10-27 |
| category ↗ | 57 | 92 | 97 | 93 | 92 | 97 | 2026-11-03 |
| product ↗ | 64 | 92 | 97 | 94 | 92 | 97 | 2026-10-27 |
| Fuse default demo ↗ | 53 | 96 | 100 | 88 | 96 | 98 | 2026-10-27 |
| category ↗ | 64 | 92 | 100 | 85 | 92 | 95 | 2026-11-03 |
| product ↗ | 41 | 100 | 100 | 90 | 100 | 100 | 2026-10-27 |
| Node demo ↗ | 72 | 92 | 97 | 93 | 92 | 97 | 2026-11-08 |
| category ↗ | 72 | 92 | 97 | 93 | 92 | 97 | 2026-11-08 |