JS libraries impact: 20 providers ranked | The State of Web Vitals 2026

LCP INP CLS

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

Providers ranked

After min-sites filter

142,710

Sites in sample

Combined across all items

0.01

Best CLS (p75)

Flickity

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv

The ranking sorted by CLS at p75, fastest first

#	Provider	CLS p75	Passing	Sites
1	Flickity	0.01	92.0%	2,891
2	Turbo/Hotwire	0.01	94.1%	258
3	GSAP	0.02	89.7%	2,573
4	jQuery	0.02	89.8%	67,906
5	Swiper	0.02	89.2%	15,692
6	Stimulus/Hotwire	0.02	91.0%	1,536
7	Lodash	0.02	87.2%	13,200
8	Slick Carousel	0.03	86.6%	7,462
9	Lazysizes	0.03	88.4%	6,844
10	Backbone.js	0.04	82.6%	818
11	Moment.js	0.04	84.5%	4,065
12	Lit	0.04	83.9%	5,243
13	Vue.js	0.04	84.3%	5,677
14	Owl Carousel	0.05	83.6%	4,359
15	Next.js	0.09	76.5%	2,085
16	Nuxt	0.12	72.5%	647
17	React	0.15	72.4%	235
18	Ember.js	0.17	68.9%	67
19	Ionic	0.27	53.8%	116
20	Angular	0.32	51.1%	1,036

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75

Marko 0% 12 100% 0.02

Turbo/Hotwire 0.3% 258 94% 0.01

Flickity 3% 2,891 92% 0.01

Stimulus/Hotwire 1.6% 1,536 91% 0.02

jQuery 71.5% 67,906 90% 0.02

GSAP 2.7% 2,573 90% 0.02

Swiper 16.5% 15,692 89% 0.02

lazysizes 7.2% 6,844 88% 0.03

Lodash 13.9% 13,200 87% 0.02

Slick Carousel 7.9% 7,462 87% 0.03

Moment.js 4.3% 4,065 85% 0.04

Vue.js 6% 5,677 84% 0.04

Lit 5.5% 5,243 84% 0.04

Owl Carousel 4.6% 4,359 84% 0.05

Backbone.js 0.9% 818 83% 0.04

Polyfill.io 0% 46 82% 0.01

Next.js 2.2% 2,085 77% 0.09

Nuxt.js 0.7% 647 73% 0.12

React 0.2% 235 72% 0.15

Ember.js 0.1% 67 69% 0.17

Ionic 0.1% 116 54% 0.27

Angular 1.1% 1,036 51% 0.32

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

94% of Turbo/Hotwire sites pass CLS. Angular trails 43 points behind, leaving 49% of its sites failing. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone 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 71.5%

812.3s

95121ms

900.02

731.9s

521.3s

Swiper 16.5%

752.5s

94129ms

890.02

682.1s

471.5s

Lodash 13.9%

782.3s

93127ms

870.02

721.9s

601.2s

Slick Carousel 7.9%

812.2s

94128ms

870.03

751.8s

541.2s

lazysizes 7.2%

792.4s

93132ms

880.03

731.9s

531.3s

Vue.js 6%

772.4s

92145ms

840.04

711.9s

531.3s

Lit 5.5%

752.5s

90142ms

840.04

702.0s

571.2s

Owl Carousel 4.6%

802.3s

95120ms

840.05

741.8s

501.3s

Moment.js 4.3%

762.5s

91136ms

850.04

702.0s

531.3s

Flickity 3%

812.3s

96129ms

920.01

741.8s

581.2s

GSAP 2.7%

722.6s

97123ms

900.02

662.1s

451.6s

Next.js 2.2%

802.3s

71213ms

770.09

801.7s

71856ms

Stimulus/Hotwire 1.6%

882.1s

95122ms

910.02

841.5s

77768ms

Angular 1.1%

573.1s

75201ms

510.32

642.1s

81694ms

Backbone.js 0.9%

672.9s

92135ms

830.04

592.3s

411.6s

Nuxt.js 0.7%

702.7s

86169ms

730.12

691.9s

591.0s

Turbo/Hotwire 0.3%

931.7s

88159ms

940.01

871.3s

79770ms

React 0.2%

812.3s

73211ms

720.15

721.8s

471.3s

Ionic 0.1%

364.2s

76194ms

540.27

382.9s

70985ms

Ember.js 0.1%

712.7s

74189ms

690.17

652.1s

76779ms

Polyfill.io 0%

932.0s

96124ms

820.01

821.7s

681.0s

Marko 0%

552.8s

73198ms

1000.02

272.4s

91.8s

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.

Turbo/Hotwire leads on CLS: 94% of its sites pass. Angular trails at 51%. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv

Related signals A/B testing (10) → Personalization (5) → E-commerce (14) → CDN (15) → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured