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
52ms
Best INP (p75)
WP Fastest Cache
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 WP Fastest Cache 52ms 100.0%
68
2 Autoptimize 60ms 100.0%
132
3 LiteSpeed Cache 65ms 100.0%
160
4 WP Rocket 71ms 98.9%
215
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
LiteSpeed Cache 1.7% 160 100% 65ms
Autoptimize 1.4% 132 100% 60ms
WP Fastest Cache 0.7% 68 100% 52ms
FlyingPress 0.1% 14 100% 72ms
W3 Total Cache 0.1% 8 100% 83ms
NitroPack 0.1% 6 100% 62ms
WP Rocket 2.2% 215 99% 71ms
Cloudflare APO 0.4% 42 89% 70ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

No provider stands out: pass rates sit between 99% and 100%. 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.

LiteSpeed Cache leads on INP: 100% of its sites pass. WP Rocket trails at 99%. 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