JS libraries impact on Shopify sites | The State of Web Vitals 2026

LCP INP CLS

SHShopify Scoped to 8,248 sites out of 203,892 analyzed (cms) Compare with all sites →

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

Providers ranked

After min-sites filter

12,079

Sites in sample

Combined across all items

0.06

Best CLS (p75)

Flickity

The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv

The ranking sorted by CLS at p75, fastest first

#	Provider	CLS p75	Passing	Sites
1	Flickity	0.06	84.3%	1,551
2	GSAP	0.06	88.1%	182
3	Moment.js	0.08	80.8%	151
4	Lodash	0.08	78.2%	896
5	Vue.js	0.08	79.5%	933
6	Lit	0.08	81.9%	966
7	Swiper	0.08	80.3%	1,535
8	jQuery	0.08	80.3%	3,185
9	Lazysizes	0.09	79.6%	1,720
10	Owl Carousel	0.12	70.6%	166
11	Slick Carousel	0.12	72.9%	794

The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75

GSAP 2.2% 182 88% 0.06

Flickity 18.8% 1,551 84% 0.06

Lit 11.7% 966 82% 0.08

Moment.js 1.8% 151 81% 0.08

jQuery 38.6% 3,185 80% 0.08

Swiper 18.6% 1,535 80% 0.08

React 0.1% 7 80% 0.07

lazysizes 20.9% 1,720 80% 0.09

Vue.js 11.3% 933 80% 0.08

Lodash 10.9% 896 78% 0.08

Slick Carousel 9.6% 794 73% 0.12

Owl Carousel 2% 166 71% 0.12

Angular 0.1% 7 67% 0.10

Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site

88% of GSAP sites pass CLS. Owl Carousel trails 17 points behind, leaving 29% of its sites failing. computed

The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv

All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75

LCP

INP

CLS

FCP

TTFB

jQuery 38.6%

951.8s

9978ms

800.08

951.1s

96480ms

lazysizes 20.9%

941.9s

9976ms

800.09

951.1s

97472ms

Flickity 18.8%

961.8s

10078ms

840.06

961.1s

97463ms

Swiper 18.6%

951.7s

9991ms

800.08

951.1s

96502ms

Lit 11.7%

961.8s

9991ms

820.08

961.1s

98493ms

Vue.js 11.3%

971.7s

10084ms

800.08

971.1s

96473ms

Lodash 10.9%

951.7s

10075ms

780.08

951.1s

96467ms

Slick Carousel 9.6%

931.9s

9975ms

730.12

941.1s

94488ms

GSAP 2.2%

971.6s

9976ms

880.06

951.1s

94442ms

Owl Carousel 2%

842.2s

9978ms

710.12

891.2s

87511ms

Moment.js 1.8%

941.8s

10080ms

810.08

921.0s

97447ms

React 0.1%

1001.1s

10049ms

800.07

100599ms

100413ms

Angular 0.1%

1001.6s

10078ms

670.10

100929ms

100504ms

60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites

One row per provider, one column per vital - the cell is the share of sites passing, the small number the p75. No toggling needed to see where the category actually differs.

GSAP leads on CLS: 88% of its sites pass. Owl Carousel trails at 71%. computed

The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv

Related signals A/B testing (12) → Personalization (6) → E-commerce (17) → CDN (16) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured

JS libraries impact Shopify sites

At a glance the headline numbers for JS libraries impact

The ranking sorted by CLS at p75, fastest first

Passing CLS per provider which group passes the CLS most often

All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75