Performance services impact React sites

Performance impact by performance provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · React sites only
Metric LCP INP CLS
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for Performance services impact

Performance impact by performance provider.

4
Providers ranked
After min-sites filter
575
Sites in sample
Combined across all items
2.5s
Best LCP (p75)
WP Rocket
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 WP Rocket 2.5s 75.7%
215
2 WP Fastest Cache 2.5s 72.2%
68
3 Autoptimize 2.8s 68.4%
132
4 LiteSpeed Cache 2.8s 67.8%
160
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
FlyingPress 0.1% 14 80% 2.1s
WP Rocket 2.2% 215 76% 2.5s
WP Fastest Cache 0.7% 68 72% 2.5s
Autoptimize 1.4% 132 68% 2.8s
LiteSpeed Cache 1.7% 160 68% 2.8s
Cloudflare APO 0.4% 42 45% 3.6s
W3 Total Cache 0.1% 8 33% 6.1s
NitroPack 0.1% 6 33% 3.1s
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

76% of WP Rocket sites pass LCP. LiteSpeed Cache trails 8 points behind, leaving 32% of its sites failing. computed

The State of Web Vitals · October 2026 · React sites (9,570) · 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
WP Rocket 2.2%
762.5s
9971ms
770.10
682.0s
252.3s
LiteSpeed Cache 1.7%
682.8s
10065ms
640.16
592.3s
421.9s
Autoptimize 1.4%
682.8s
10060ms
740.10
562.2s
181.9s
WP Fastest Cache 0.7%
722.5s
10052ms
830.07
781.6s
501.4s
Cloudflare APO 0.4%
453.6s
8970ms
700.11
303.2s
223.3s
FlyingPress 0.1%
802.1s
10072ms
400.20
601.9s
252.5s
W3 Total Cache 0.1%
336.1s
10083ms
1000.09
335.5s
05.2s
NitroPack 0.1%
333.1s
10062ms
670.20
332.6s
02.3s
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.

WP Rocket leads on LCP: 76% of its sites pass. Autoptimize trails at 68%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Analytics (20) → Reviews (8) → Maps (4) → CMS (17) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured