Optimisation · 2026-08-28

Stop being generous with space

Uncapped image uploads are an open invoice: users will hand you twelve-megabyte photos for a thumbnail slot. Cap the count, cap the file size, and convert what arrives into a modern lightweight format before serving it.

Every byte you store and ship is a bill. Put a bouncer on the upload door.

Go deeper — free chapter

Testing and Optimisation: Make Your AI-Built App Fast — Why your app is slow and how to fix it: test with Claude, cap image uploads, serve WebP, batch database calls and paginate feeds for a leaner build.

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