JS libraries impact Shopify sites

Performance impact by framework provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices field outcomes · Shopify sites only
Metric LCP INP CLS
Shopify Scoped to 8,248 sites out of 203,892 analyzed (cms) Compare with all sites →
1

At a glance the headline numbers for JS libraries impact

Performance impact by framework provider.

11
Providers ranked
After min-sites filter
12,079
Sites in sample
Combined across all items
1.7s
Best LCP (p75)
Vue.js
The State of Web Vitals · October 2026 · Shopify sites (8,248) · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 Vue.js 1.7s 95.2%
933
2 Lodash 1.7s 93.9%
896
3 Moment.js 1.8s 95.2%
151
4 Lit 1.8s 94.7%
966
5 jQuery 1.8s 93.9%
3,185
6 Swiper 1.8s 94.0%
1,535
7 GSAP 1.8s 95.5%
182
8 Flickity 1.9s 94.0%
1,551
9 Lazysizes 1.9s 93.2%
1,720
10 Slick Carousel 1.9s 91.6%
794
11 Owl Carousel 2.0s 90.7%
166
The State of Web Vitals · October 2026 · Shopify sites (8,248) · all devices field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
React 0.1% 7 100% 1.3s
Angular 0.1% 7 100% 1.8s
GSAP 2.2% 182 96% 1.8s
Vue.js 11.3% 933 95% 1.7s
Moment.js 1.8% 151 95% 1.8s
Lit 11.7% 966 95% 1.8s
Flickity 18.8% 1,551 94% 1.9s
Swiper 18.6% 1,535 94% 1.8s
jQuery 38.6% 3,185 94% 1.8s
Lodash 10.9% 896 94% 1.7s
lazysizes 20.9% 1,720 93% 1.9s
Slick Carousel 9.6% 794 92% 1.9s
Owl Carousel 2% 166 91% 2.0s
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

96% of GSAP sites pass LCP. Owl Carousel trails 5 points behind. computed

The State of Web Vitals · October 2026 · Shopify sites (8,248) · 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 38.6%
941.8s
95128ms
910.04
941.2s
95521ms
lazysizes 20.9%
931.9s
96121ms
890.04
941.2s
96517ms
Flickity 18.8%
941.9s
96128ms
920.03
941.2s
96524ms
Swiper 18.6%
941.8s
93145ms
910.04
931.2s
95542ms
Lit 11.7%
951.8s
94144ms
910.04
941.2s
97531ms
Vue.js 11.3%
951.7s
94136ms
910.04
961.2s
94536ms
Lodash 10.9%
941.7s
96118ms
910.04
931.2s
96508ms
Slick Carousel 9.6%
921.9s
95126ms
890.04
941.2s
96517ms
GSAP 2.2%
961.8s
96130ms
970.02
961.2s
94556ms
Owl Carousel 2%
912.0s
97118ms
820.09
911.2s
92525ms
Moment.js 1.8%
951.8s
97126ms
890.04
941.2s
97501ms
React 0.1%
1001.3s
10084ms
1000.03
100817ms
100452ms
Angular 0.1%
1001.8s
100144ms
860.04
1001.1s
100542ms
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 LCP: 96% of its sites pass. Owl Carousel trails at 91%. computed

The State of Web Vitals · October 2026 · Shopify sites (8,248) · all devices 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