JS libraries impact

Performance impact by framework provider.

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

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

21
Providers ranked
After min-sites filter
323,404
Sites in sample
Combined across all items
1.6s
Best LCP (p75)
Turbo/Hotwire
The State of Web Vitals · November 2026 · 225,631 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 Turbo/Hotwire 1.6s 95.1%
628
2 Stimulus/Hotwire 1.8s 93.9%
3,682
3 Next.js 2.0s 87.0%
5,045
4 Flickity 2.0s 86.4%
6,554
5 jQuery 2.0s 85.2%
153,227
6 Slick Carousel 2.0s 85.7%
16,904
7 Lazysizes 2.1s 85.4%
15,233
8 Owl Carousel 2.1s 83.8%
9,689
9 Ember.js 2.1s 84.8%
138
10 Lit 2.1s 83.3%
12,299
11 Vue.js 2.2s 82.7%
13,071
12 Swiper 2.2s 81.4%
35,446
13 Moment.js 2.3s 80.1%
9,127
14 GSAP 2.3s 80.1%
5,960
15 Lodash 2.4s 77.4%
29,933
16 Polyfill.io 2.4s 74.4%
98
17 React 2.4s 76.8%
527
18 Nuxt 2.4s 77.1%
1,455
19 Backbone.js 2.5s 73.8%
1,808
20 Angular 2.6s 72.1%
2,319
21 Ionic 2.8s 67.5%
261
The State of Web Vitals · November 2026 · 225,631 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
Turbo/Hotwire 0.3% 628 95% 1.6s
Stimulus/Hotwire 1.6% 3,682 94% 1.8s
Next.js 2.2% 5,045 87% 2.0s
Flickity 2.9% 6,554 86% 2.0s
Slick Carousel 7.5% 16,904 86% 2.0s
lazysizes 6.8% 15,233 85% 2.1s
jQuery 67.9% 153,227 85% 2.0s
Ember.js 0.1% 138 85% 2.1s
Owl Carousel 4.3% 9,689 84% 2.1s
Lit 5.5% 12,299 83% 2.1s
Marko 0% 20 83% 2.3s
Vue.js 5.8% 13,071 83% 2.2s
Swiper 15.7% 35,446 81% 2.2s
Moment.js 4% 9,127 80% 2.3s
GSAP 2.6% 5,960 80% 2.3s
Lodash 13.3% 29,933 77% 2.4s
Nuxt.js 0.6% 1,455 77% 2.4s
React 0.2% 527 77% 2.4s
Polyfill.io 0% 98 74% 2.4s
Backbone.js 0.8% 1,808 74% 2.5s
Angular 1% 2,319 72% 2.6s
Polymer 0% 20 71% 2.3s
Ionic 0.1% 261 68% 2.8s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site

95% of Turbo/Hotwire sites pass LCP. Ionic trails 27 points behind, leaving 32% of its sites failing. computed

The State of Web Vitals · November 2026 · 225,631 crawled sites · desktop 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 67.9%
852.0s
9962ms
780.09
801.6s
561.2s
Swiper 15.7%
812.2s
9967ms
780.09
761.8s
521.4s
Lodash 13.3%
772.4s
9869ms
720.12
721.9s
511.5s
Slick Carousel 7.5%
862.0s
9964ms
720.12
811.6s
561.2s
lazysizes 6.8%
852.1s
9967ms
760.10
811.6s
571.2s
Vue.js 5.8%
832.2s
9978ms
720.12
801.6s
611.1s
Lit 5.5%
832.1s
9975ms
740.11
811.6s
631.1s
Owl Carousel 4.3%
842.1s
9963ms
680.13
791.7s
511.3s
Moment.js 4%
802.3s
9968ms
720.12
751.8s
561.3s
Flickity 2.9%
862.0s
10069ms
810.08
821.5s
651.1s
GSAP 2.6%
802.3s
9966ms
810.08
761.8s
521.4s
Next.js 2.2%
872.0s
96104ms
750.10
881.4s
76781ms
Stimulus/Hotwire 1.6%
941.8s
9968ms
850.07
921.3s
80721ms
Angular 1%
722.6s
96113ms
470.30
801.7s
85572ms
Backbone.js 0.8%
742.5s
9968ms
710.13
672.0s
451.5s
Nuxt.js 0.6%
772.4s
9798ms
650.15
781.7s
641.0s
Turbo/Hotwire 0.3%
951.6s
9980ms
900.04
901.3s
77771ms
React 0.2%
772.4s
9495ms
600.19
791.7s
641.1s
Ionic 0.1%
682.8s
95125ms
660.14
632.0s
701.0s
Ember.js 0.1%
852.1s
9781ms
770.09
781.7s
631.1s
Polyfill.io 0%
742.4s
10077ms
800.08
711.9s
581.0s
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.

Turbo/Hotwire leads on LCP: 95% of its sites pass. Ionic trails at 68%. computed

The State of Web Vitals · November 2026 · 225,631 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals A/B testing (12) → Personalization (6) → E-commerce (17) → CDN (16) → 225,631 crawled sites with Chrome field data, representing millions of real page loads · How we measured