Fix Next.js Page Load Lag

My social-media-style app is built with Next.js on the front end and NestJS on the back end, all in TypeScript. Right now there’s an unacceptably long pause the moment the site first loads; once it finally renders everything performs fine. I don’t yet know whether the holdup is bundle size, blocking API calls, or something else, so I need a certified freelancer who can jump in, pinpoint the root cause, and get that initial render back to a snappy response.

You’ll receive the full codebase after we open the contract. From there I’m looking for:

• A concise analysis showing what was slowing the page down
• The updated code (PR or patch) solving the issue
• Before-and-after load-time metrics so I can verify the improvement

This is time-sensitive—ideally the fix lands ASAP.