Question

Lovable app is slow to load, 6 seconds on a good connection

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noor_builds

It's a small CRUD app. Six seconds until anything shows.

What I’ve tried

Asked Lovable to optimize. It added a loading spinner.

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dev_analast week

A spinner is the AI admitting defeat. Open DevTools → Network: I bet you see one 5 MB JavaScript bundle. Lovable imports whole icon and chart libraries. Ask it specifically: 'Import only the icons we use from lucide-react by name. Lazy-load the chart component with React.lazy.' Those two usually cut 70%.

Comment

Bundle was 4.8 MB. After the named icon imports and the lazy chart it's 1.1 MB, first paint under 2 seconds.

noor_builds last week

kenji_wlast week

To see what is in the bundle instead of guessing: Lovable projects are Vite, so npx vite-bundle-visualizer after a build gives you a treemap. The big blocks are your to-do list. Usually it's the icon set, a chart library and a date library with all locales.

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The treemap is great. The date library was 600 KB of locales I don't use.

noor_builds last week

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Lovable app is slow to load, 6 seconds on a good connection

What I’ve tried

2 answers

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