Astra and Kadence are so similar on paper that comparison tables read like mirror images: lightweight, hooks galore, starter templates, WooCommerce integration. We got tired of tables that copy each other, so we ran both through our standard benchmark rig and then built the identical B2B landing page in each — twice — to see where the difference actually lives.
Benchmark results first
From our 2026 benchmark set, same server, same demo content:
| Metric | Astra | Kadence |
|---|---|---|
| Uncached LCP | 1.68s | 1.42s |
| Cached LCP | 0.78s | 0.66s |
| Page weight | 283 KB | 236 KB |
| DB queries | 72 | 61 |
| CSS shipped / unused | 71 KB / 38% | 48 KB / 27% |
Kadence wins every row — but the margins are 0.1–0.26s, not night and day. Both themes are fast; only one is measurably leaner out of the box.
Building the same page twice
The more interesting test: a campaign landing page with hero, logo bar, three feature cards, FAQ accordion, and a form. Built twice, once per theme, timed honestly.
- Kadence: 68 minutes. The block library covered every section; the accordion was native; spacing between blocks behaved predictably.
- Astra: 95 minutes. Two sections required the Spectra blocks plugin (more plugins = more weight), and the accordion needed a third-party block.
That is the real difference: Kadence ships more capable native blocks, while Astra leans on its Spectra ecosystem — which works but adds the layer this site’s speed-tax analysis warns about.
Where Astra genuinely beats Kadence
- WooCommerce depth. Astra’s shop layouts, checkout customization, and product-page options are more mature. If you add a store later, Astra eases that transition — see the wholesale theme checklist for what “shop-ready” means in practice.
- Third-party ecosystem. More tutorials, more agencies know it, more starter templates across niches.
- Customizer maturity. Long-run polish; the settings panel is more predictable than Kadence’s newer one.
Where Kadence wins
- Native blocks — rows, accordions, tabs, tables without extra plugins.
- Header builder — more flexible than Astra’s, with per-device control that behaves.
- Leaner baseline — 47 KB less CSS shipped, which compounds on every uncached visit.
- Font loading controls — self-hosting and per-weight toggles built in; see why that matters for LCP.
Pricing, honestly
Both use freemium models. Astra Pro runs ~$59/year; Kadence’s full bundle ~$129/year but bundles Kadence Blocks Pro, which Astra users typically supplement with Spectra Pro (~$49/year). Total cost of a comparable stack lands within $20 of each other — pricing is not the differentiator; workflows are.
Our verdict
Choose Kadence if you build content sites and lead pages and want native blocks without plugin sprawl. Choose Astra if WooCommerce is or will become central, or your team already knows Astra deeply. If you are migrating between them, the decision framework in when to switch themes will save you a wasted rebuild — and if your current site is slow for reasons beyond the theme, start with the free audit first.
In our identical-server tests, yes — 1.42s vs 1.68s uncached LCP and 47 KB less CSS shipped. Both are fast; the gap compounds mainly on uncached visits. Not required, but many layouts expect Spectra blocks for accordions, tables, and advanced sections. Kadence ships equivalent native blocks without a companion plugin. Astra — its shop layouts, checkout options, and product page controls are more mature. Kadence works fine for simple stores. For either theme, Pro tiers mainly buy starter templates, advanced header builders, and hooks. Estimate whether you will use those within a year before upgrading. Content survives; layouts do not. Plan a staged rebuild of templates and check shortcodes — our theme-switch framework covers the sequence.Is Kadence faster than Astra?
Does Astra require the Spectra plugin?
Which is better for WooCommerce, Astra or Kadence?
Are the paid versions worth it?
Can I switch from Astra to Kadence easily?
