State of BigCommerce theme speed — October 2026
As of 2026-10-31, 232 BigCommerce themes have Google Lighthouse speed scores on Themestested, measured on their own demo stores. The median mobile speed score is 66 (desktop 86); 0 themes (0%) score 90 or better on mobile. The highest is Cornerstone Warm by BigCommerce at 89, then Artify Electronics at 88 and Cornerstone Bold at 88. No BigCommerce themes were first tested in October 2026. The biggest improvement is Terra Warm, up 29 points to 73 since 2026-10-18.
Top BigCommerce themes for speed
Highest mobile speed score as of 2026-10-31; the desktop score beside it. A theme's score is the median of its tested presets.
| Theme | Mobile | Desktop | Price | |
|---|---|---|---|---|
| 1 | Cornerstone Warm · BigCommerce | 89 | 99 | Free |
| 2 | Artify Electronics · 1Center | 88 | 91 | $150 |
| 3 | Cornerstone Bold · BigCommerce | 88 | 99 | Free |
| 4 | Cornerstone Light · BigCommerce | 86 | 99 | Free |
| 5 | Covent Garden Contemporary · Flair Consultancy | 84 | 72 | $235 |
| 6 | Camden Catalog · Flair Consultancy | 83 | 79 | $235 |
| 7 | Eyeva Sofas · Papathemes | 83 | 92 | $295 |
| 8 | Kansha CBD · Papathemes | 83 | 88 | $245 |
| 9 | Camden B2B · Flair Consultancy | 82 | 99 | $235 |
| 10 | Vault Natural · Lonestar Templates | 82 | 91 | Free |
New this month
Themes first tested in October 2026, best first.
No BigCommerce themes were first tested in October 2026.
Trending
The biggest changes in mobile speed between a theme's latest test and its last test at least a week earlier. A move of 3 points or more counts; Lighthouse varies by a point or two between runs.
| Theme | Mobile | Desktop | Price | Change | From → to | |
|---|---|---|---|---|---|---|
| 1 | Terra Warm · epicShops | 73 | 98 | $300 | +29 | 44 → 73 since 2026-10-18 |
| 2 | Kitchenary Fashion · Papathemes | 70 | 79 | $350 | +28 | 49 → 77 since 2026-10-17 |
| 3 | Vault Natural · Lonestar Templates | 82 | 91 | Free | +26 | 66 → 92 since 2026-10-24 |
| 4 | Eyeva Glasses · Papathemes | 69 | 86 | $295 | +24 | 41 → 65 since 2026-10-17 |
| 5 | Orbit Warm · epicShops | 70 | 94 | $100 | +23 | 54 → 77 since 2026-10-18 |
| 6 | Style Fashion · Webibazaar | 51 | 87 | $250 | +22 | 40 → 62 since 2026-10-13 |
| 7 | Fortune Highlight · BigCommerce | 64 | 77 | Free | +20 | 46 → 66 since 2026-10-13 |
| 8 | Noble Vintage · Lonestar Templates | 64 | 88 | $245 | +20 | 51 → 71 since 2026-10-18 |
| 9 | Solar Beauty · epicShops | 74 | 73 | $100 | +19 | 55 → 74 since 2026-10-17 |
| 10 | Brick Lane Trend · Flair Consultancy | 74 | 96 | $295 | +18 | 63 → 81 since 2026-10-17 |
Falling
| Theme | Mobile | Desktop | Price | Change | From → to | |
|---|---|---|---|---|---|---|
| 1 | Terra Light · epicShops | 73 | 89 | $300 | -31 | 73 → 42 since 2026-10-18 |
| 2 | Peak Bold · BigCommerce | 56 | 73 | $195 | -31 | 82 → 51 since 2026-10-24 |
| 3 | Hightech Furniture · Webibazaar | 51 | 84 | $250 | -28 | 69 → 41 since 2026-10-24 |
| 4 | Milano Blue · 1Center | 69 | 70 | $170 | -26 | 73 → 47 since 2026-10-24 |
| 5 | Artify Jewelry · 1Center | 80 | 95 | $150 | -22 | 73 → 51 since 2026-10-11 |
Distribution
How all 232 tested BigCommerce themes fall across Google's bands.
About this report
Scores are Google Lighthouse performance scores from the PageSpeed Insights API, run against each theme's own demo store — the home page and, on store platforms, a collection and a product page — on a simulated mid-range phone and on desktop. A theme's score is the median of its presets; a preset's is the mean of its pages. Every run is kept, and a theme's page shows its history. This month is closed; its numbers no longer change. Read the full methodology, or see the live BigCommerce speed ranking.
Other months: September 2026November 2026
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