"resolve page components" taking 500ms

[bitttttten]

I am hosting a Next.JS app on Vercel and we're seeing pages that take 2.5s to render, i.e.

What's the best way to debug this kind of thing? We are on the Pro tier of Vercel so perhaps it's something out of our control although I just wanted to open up the discussion to see if anyone else has seem similar issues and has been able to solve them.

[aarondunphy]

I have also noticed a similar thing with our application we are hosting on Vercel. Tried debugging the Next.js internals before and it appears they have caching around the resolve page components function which is why most of the time it's instant. I assume it's made worse from the serverless function starting up fresh so there's no cache.

Like you say, we need a way to debug this so we can figure out where/why this is happening. It doesn't appear slow on basic next.js apps so I assume it's something on our end but at a loss currently.

We are enterprise customers on Vercel and we've raised a support case with them recently so will report back if we hear anything.

[ifeltsweet]

Seeing similar thing on our side. Would love to hear what Vercel team comes back with.