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The Chrome User Experience Report (CrUX) data for January 2026 is now live on Theme Vitals. In this post, I’ll cover:

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Change in data population

  • The total number of Shopify websites decreased by 0.02% to 592,401 on mobile devices. On desktop devices, it increased by 0.03% to 296,096.
  • New themes added this month: Vetro, Metro, Zora, Zyra, Flaunt.
  • Themes dropped due to not enough data: Couture, Cypress.
  • I now show 340 (up from 337) total themes. 234 have performance data for mobile devices and 201 for desktop devices.

Shopify overall performance changes

Here are the median, min, and max performance numbers on mobile for all the Shopify themes measured on mobile devices:

image.png (For a more accessible version, see it live on the website: Aggregations).

Websites passing All Core Web Vitals increased by 0.50 percentage points to 84.40% on mobile. On desktop devices, it increased by 0.90 percentage points to 85.10%. This is a seasonal correction from last month.

For Largest Contentful Paint (LCP), both mobile and desktop devices increased by 0.25 and 0.40 percentage points, respectively. For CLS, mobile devices improved by 0.50 points while desktop continued its decline by 0.3 points. For INP, mobile improved by 0.65 points and desktop stayed the same at 99.9%.

Number of themes with improved (and worsened) performance

This month, about 2/3 of the themes improved in performance, reversing last month's dip. This is mostly a seasonal correction.

image.png (For a more accessible version, see it live on the website: Aggregations).

Update on new flagship Shopify theme Horizon

Horizon is still struggling with performance, but this might be partially due to a browser bug.

Mateusz Krzeszowiak discovered a bug in Chrome that might explain a large portion of the performance issues. It looks like Chrome version 145 has a fix, but the stable release was on 10 February 2026. This means we should start seeing how it impacts the data next month when the February data is released.

This month did see a very slight uptick in LCP and INP performance. See full data on the Horizon theme page.

Most improved themes

For mobile devices, these themes had the most improvement in passing all Core Web Vitals:

  1. Jumpstart: 15.8 points (79 origins)
  2. Purity: 13.9 points (95 origins)
  3. Allure: 13.0 points (87 origins)
  4. Artisan: 12.2 points (95 origins)
  5. Lorenza: 8.6 points (52 origins)

For desktop devices, these themes improved the most:

  1. Abode: 11.0 points (63 origins)
  2. Stockholm: 9.1 points (53 origins)
  3. Ultra: 8.4 points (82 origins)
  4. Edge: 8.1 points (70 origins)
  5. Loft: 7.9 points (110 origins)

When themes on these lists have a small number of origins/market share, some of the improvements could be due to the underlying population of websites changing.

Highest market growth

As a reminder, the market share numbers calculated in Theme Vitals are not the same as number of installs. Here, we’re calculating market share based on the number of origins (websites/domains) in CrUX. CrUX only shares data for websites that reach a certain threshold of popularity. This threshold sometimes changes. To learn more, check out the methodology page for CrUX.

Growth in number of origins

The themes that already have the largest market shares usually have the highest growth in number of origins.

Mobile

  1. Horizon: 1596
  2. Tinker: 180
  3. Hyper: 154
  4. Savor: 143
  5. Atelier: 142

Desktop

  1. Dawn: 816
  2. Horizon: 576
  3. Concept: 193
  4. Empire: 157
  5. Warehouse: 152

Percent growth in origins

Raw growth is interesting but usually focuses too much on the existing themes with high market share. Here, I show which themes are growing the fastest on a percentage basis.

Mobile

  1. Purity: 46.2%
  2. Horizon: 18.6%
  3. Normcore: 17.0%
  4. Volume: 16.7%
  5. Tinker: 15.7%

Desktop

  1. Boutique: 32.6%
  2. Horizon: 22.2%
  3. San Francisco: 20.7%
  4. Motto: 20.3%
  5. Dwell: 19.3%

Closing

Don't forget to check for the latest updates for the Fastest Shopify Themes.

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As always, if you have ideas for new features or other improvements, let me know!

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