JS libraries impact Shopify sites

Performance impact by framework provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop 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
1.6s
Best LCP (p75)
GSAP
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 GSAP 1.6s 97.2%
182
2 Vue.js 1.7s 96.6%
933
3 Swiper 1.7s 95.2%
1,535
4 Lodash 1.7s 94.7%
896
5 Moment.js 1.8s 94.2%
151
6 Flickity 1.8s 96.1%
1,551
7 jQuery 1.8s 95.1%
3,185
8 Lit 1.8s 95.9%
966
9 Lazysizes 1.9s 94.3%
1,720
10 Slick Carousel 1.9s 92.8%
794
11 Owl Carousel 2.2s 84.1%
166
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop 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% 1.1s
Angular 0.1% 7 100% 1.6s
GSAP 2.2% 182 97% 1.6s
Vue.js 11.3% 933 97% 1.7s
Flickity 18.8% 1,551 96% 1.8s
Lit 11.7% 966 96% 1.8s
Swiper 18.6% 1,535 95% 1.7s
jQuery 38.6% 3,185 95% 1.8s
Lodash 10.9% 896 95% 1.7s
lazysizes 20.9% 1,720 94% 1.9s
Moment.js 1.8% 151 94% 1.8s
Slick Carousel 9.6% 794 93% 1.9s
Owl Carousel 2% 166 84% 2.2s
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

97% of GSAP sites pass LCP. Owl Carousel trails 13 points behind. computed

The State of Web Vitals · October 2026 · Shopify sites (8,248) · 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 38.6%
951.8s
9978ms
800.08
951.1s
96480ms
lazysizes 20.9%
941.9s
9976ms
800.09
951.1s
97472ms
Flickity 18.8%
961.8s
10078ms
840.06
961.1s
97463ms
Swiper 18.6%
951.7s
9991ms
800.08
951.1s
96502ms
Lit 11.7%
961.8s
9991ms
820.08
961.1s
98493ms
Vue.js 11.3%
971.7s
10084ms
800.08
971.1s
96473ms
Lodash 10.9%
951.7s
10075ms
780.08
951.1s
96467ms
Slick Carousel 9.6%
931.9s
9975ms
730.12
941.1s
94488ms
GSAP 2.2%
971.6s
9976ms
880.06
951.1s
94442ms
Owl Carousel 2%
842.2s
9978ms
710.12
891.2s
87511ms
Moment.js 1.8%
941.8s
10080ms
810.08
921.0s
97447ms
React 0.1%
1001.1s
10049ms
800.07
100599ms
100413ms
Angular 0.1%
1001.6s
10078ms
670.10
100929ms
100504ms
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.

Vue.js leads on LCP: 97% of its sites pass. Owl Carousel trails at 84%. computed

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