I Built the Same App in Next.js 15 and Remix. The Performance Gap Was Shocking.

Title: I Built the Same App in Next.js 15 and Remix. The Performance Gap Was Shocking.

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Published Time: 2026-04-24T05:25:35Z

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# I Built the Same App in Next.js 15 and Remix. The Performance Gap Was Shocking.

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[Ketan Rapariya](https://medium.com/@ketanrapariya?source=post_page---byline--b9c51d2265d4---------------------------------------)

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8 min read

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Apr 24, 2026

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_Same feature set. Same database. Same Vercel deployment. The Lighthouse scores weren’t even in the same league._

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I didn’t start this as an e