JS libraries impact: 21 providers ranked | The State of Web Vitals 2026

1

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

21

Providers ranked

After min-sites filter

272,218

Sites in sample

Combined across all items

62ms

Best INP (p75)

jQuery

The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv

2

The ranking sorted by INP at p75, fastest first

#	Provider	INP p75	Passing	Sites
1	jQuery	62ms	99.3%	129,336
2	Owl Carousel	62ms	99.2%	8,206
3	Slick Carousel	64ms	99.2%	14,369
4	GSAP	65ms	99.5%	4,918
5	Lazysizes	66ms	99.4%	12,984
6	Moment.js	67ms	99.2%	7,670
7	Swiper	67ms	99.2%	29,806
8	Backbone.js	68ms	98.6%	1,540
9	Stimulus/Hotwire	68ms	99.4%	3,021
10	Flickity	68ms	99.5%	5,509
11	Lodash	69ms	98.4%	25,401
12	Polyfill.io	74ms	100.0%	88
13	Lit	74ms	98.7%	10,260
14	Vue.js	76ms	98.9%	10,724
15	Turbo/Hotwire	79ms	98.7%	520
16	Ember.js	79ms	96.7%	114
17	React	92ms	94.2%	448
18	Nuxt	99ms	97.2%	1,199
19	Next.js	104ms	96.2%	3,970
20	Angular	115ms	95.9%	1,908
21	Ionic	127ms	94.1%	227

The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv

3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75

Polyfill.io 0% 88 100% 74ms

Marko 0% 20 100% 76ms

GSAP 2.6% 4,918 100% 65ms

Flickity 2.9% 5,509 100% 68ms

Stimulus/Hotwire 1.6% 3,021 99% 68ms

lazysizes 6.8% 12,984 99% 66ms

jQuery 68.1% 129,336 99% 62ms

Owl Carousel 4.3% 8,206 99% 62ms

Moment.js 4% 7,670 99% 67ms

Slick Carousel 7.6% 14,369 99% 64ms

Swiper 15.7% 29,806 99% 67ms

Vue.js 5.6% 10,724 99% 76ms

Lit 5.4% 10,260 99% 74ms

Turbo/Hotwire 0.3% 520 99% 79ms

Backbone.js 0.8% 1,540 99% 68ms

Lodash 13.4% 25,401 98% 69ms

Nuxt.js 0.6% 1,199 97% 99ms

Ember.js 0.1% 114 97% 79ms

Next.js 2.1% 3,970 96% 104ms

Angular 1% 1,908 96% 115ms

React 0.2% 448 94% 92ms

Ionic 0.1% 227 94% 127ms

Polymer 0% 17 43% 320ms

Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

100% of GSAP sites pass INP. Ionic trails 6 points behind. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv

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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 68.1%

852.0s

9962ms

770.09

801.6s

571.2s

Swiper 15.7%

812.2s

9967ms

780.09

761.8s

531.4s

Lodash 13.4%

772.4s

9869ms

720.12

721.9s

511.5s

Slick Carousel 7.6%

852.0s

9964ms

720.12

811.6s

561.2s

lazysizes 6.8%

852.1s

9966ms

760.10

811.6s

571.2s

Vue.js 5.6%

832.1s

9976ms

710.12

801.6s

611.1s

Lit 5.4%

832.1s

9974ms

730.11

811.6s

631.1s

Owl Carousel 4.3%

842.1s

9962ms

680.14

791.7s

511.3s

Moment.js 4%

802.3s

9967ms

720.12

751.8s

571.3s

Flickity 2.9%

872.0s

10068ms

810.08

831.5s

651.1s

GSAP 2.6%

802.3s

10065ms

800.08

761.8s

521.4s

Next.js 2.1%

872.0s

96104ms

750.11

881.4s

76781ms

Stimulus/Hotwire 1.6%

941.8s

9968ms

850.07

921.3s

80727ms

Angular 1%

712.6s

96115ms

460.31

791.7s

84571ms

Backbone.js 0.8%

732.6s

9968ms

700.13

682.0s

461.5s

Nuxt.js 0.6%

782.4s

9799ms

660.15

781.7s

65995ms

Turbo/Hotwire 0.3%

951.6s

9979ms

920.04

911.2s

78751ms

React 0.2%

762.4s

9492ms

580.19

781.7s

631.1s

Ionic 0.1%

682.8s

94127ms

650.17

622.0s

701.0s

Ember.js 0.1%

842.0s

9779ms

770.08

791.6s

68944ms

Polyfill.io 0%

722.6s

10074ms

800.08

682.0s

541.1s

Marko 0%

832.3s

10076ms

830.03

562.1s

01.7s

Polymer 0%

712.3s

43320ms

430.13

711.9s

86725ms

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.

Flickity leads on INP: 100% of its sites pass. Ionic trails at 94%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv