JS libraries impact

Performance impact by framework provider.

Field data PhoneDesktopAll Scope All sites Q1 2026 edition · All devices field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

20
Providers ranked
After min-sites filter
142,710
Sites in sample
Combined across all items
104ms
Best INP (p75)
jQuery
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 jQuery 104ms 96.7%
67,906
2 Owl Carousel 105ms 97.2%
4,359
3 Stimulus/Hotwire 105ms 97.9%
1,536
4 GSAP 106ms 98.3%
2,573
5 Lodash 107ms 95.5%
13,200
6 Slick Carousel 108ms 96.4%
7,462
7 Backbone.js 111ms 96.8%
818
8 Swiper 112ms 96.8%
15,692
9 Flickity 113ms 97.9%
2,891
10 Lazysizes 114ms 95.8%
6,844
11 Moment.js 119ms 94.9%
4,065
12 Lit 121ms 93.4%
5,243
13 Vue.js 128ms 95.3%
5,677
14 Ember.js 130ms 90.6%
67
15 Turbo/Hotwire 136ms 95.2%
258
16 Nuxt 155ms 89.9%
647
17 Angular 171ms 86.0%
1,036
18 Ionic 175ms 82.4%
116
19 Next.js 188ms 78.1%
2,085
20 React 202ms 74.5%
235
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
Marko 0% 12 100% 123ms
GSAP 2.7% 2,573 98% 106ms
Flickity 3% 2,891 98% 113ms
Stimulus/Hotwire 1.6% 1,536 98% 105ms
Polyfill.io 0% 46 97% 111ms
Owl Carousel 4.6% 4,359 97% 105ms
Backbone.js 0.9% 818 97% 111ms
Swiper 16.5% 15,692 97% 112ms
jQuery 71.5% 67,906 97% 104ms
Slick Carousel 7.9% 7,462 96% 108ms
lazysizes 7.2% 6,844 96% 114ms
Lodash 13.9% 13,200 96% 107ms
Vue.js 6% 5,677 95% 128ms
Turbo/Hotwire 0.3% 258 95% 136ms
Moment.js 4.3% 4,065 95% 119ms
Lit 5.5% 5,243 93% 121ms
Ember.js 0.1% 67 91% 130ms
Nuxt.js 0.7% 647 90% 155ms
Angular 1.1% 1,036 86% 171ms
Ionic 0.1% 116 82% 175ms
Next.js 2.2% 2,085 78% 188ms
React 0.2% 235 75% 202ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

98% of GSAP sites pass INP. React trails 23 points behind. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
4

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%
812.2s
97104ms
880.03
741.9s
521.4s
Swiper 16.5%
752.5s
97112ms
880.04
672.1s
451.6s
Lodash 13.9%
792.3s
96107ms
860.04
731.9s
581.3s
Slick Carousel 7.9%
822.2s
96108ms
850.05
761.8s
541.2s
lazysizes 7.2%
802.3s
96114ms
870.05
731.9s
501.4s
Vue.js 6%
772.4s
95128ms
830.06
711.9s
521.3s
Lit 5.5%
772.4s
93121ms
830.06
721.9s
571.2s
Owl Carousel 4.6%
802.3s
97105ms
810.07
741.8s
501.3s
Moment.js 4.3%
762.5s
95119ms
830.06
702.0s
521.4s
Flickity 3%
802.3s
98113ms
910.03
731.9s
541.4s
GSAP 2.7%
732.6s
98106ms
900.03
672.1s
441.6s
Next.js 2.2%
822.2s
78188ms
780.09
821.6s
74821ms
Stimulus/Hotwire 1.6%
892.0s
98105ms
910.04
861.5s
82712ms
Angular 1.1%
613.0s
86171ms
480.30
702.0s
81671ms
Backbone.js 0.9%
712.7s
97111ms
800.07
622.2s
431.6s
Nuxt.js 0.7%
722.6s
90155ms
690.14
731.9s
601.0s
Turbo/Hotwire 0.3%
951.6s
95136ms
960.01
891.3s
78763ms
React 0.2%
822.3s
75202ms
710.14
751.8s
481.2s
Ionic 0.1%
423.8s
82175ms
570.23
442.8s
681.0s
Ember.js 0.1%
732.7s
91130ms
720.14
682.0s
72874ms
Polyfill.io 0%
822.2s
97111ms
800.06
761.7s
631.1s
Marko 0%
672.8s
100123ms
1000.02
172.3s
02.0s
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: 98% of its sites pass. React trails at 75%. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices 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