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Slow Production FCP Next.js 13 w/ Vercel on spin up

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Rat Terrier posted this in #help-forum
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Rat TerrierOP
Hey all,
My website is very fast on local development, even when running npm run build && npm start. However when deployed to Vercel, on cold load my FCP is 3.5-5 seconds. In a new browser if loaded shortly after being warmed up I have no issues and FCP is <1s.

I've tried using the bundle analyzer and reducing as much Tailwind as possible. How can I speed this up? Any help would be greatly appreciated!!

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Rat TerrierOP
Here is a screenshot from Chrome as well. Fixing the "stalled" and "waiting for server response would be awesome.