Is it common that, mac studio ultra's cubase 12 export time is longer than real-time...?

I am in total shock… haha…

Is this normal…?

My buffer is maxed. Cubase 12 pro. on Mac Studio m2 ultra.

And the export time of 3min song took about 6mins…
not many plugins…

Um… what can I do to fix this…? lol

I will answer to myself lol extremely odd but, somehow, it is exporting within 1 min…

what I did:

  • export short section first, then export the whole.