Performance services impact React sites
Performance impact by performance provider.
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
0.07
Best CLS (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 CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | WP Fastest Cache | 0.07 | 83.3% | 68 | |
| 2 | Autoptimize | 0.10 | 74.4% | 132 | |
| 3 | WP Rocket | 0.10 | 76.7% | 215 | |
| 4 | LiteSpeed Cache | 0.16 | 64.4% | 160 |
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
W3 Total Cache 0.1% 8 0.09
WP Fastest Cache 0.7% 68 0.07
WP Rocket 2.2% 215 0.10
Autoptimize 1.4% 132 0.10
Cloudflare APO 0.4% 42 0.11
NitroPack 0.1% 6 0.20
LiteSpeed Cache 1.7% 160 0.16
FlyingPress 0.1% 14 0.20
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site
77% of WP Rocket sites pass CLS. LiteSpeed Cache trails 13 points behind, leaving 36% 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 CLS: 77% of its sites pass. LiteSpeed Cache trails at 64%. 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
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.