First of all, thanks for your response.
The menu only has buttons and nothing else; even so Encore transcodes it?
With photoshop, I made a .psd file with a transparent background without anything else and after being in encore, I imported it as a menu, I added the same video of 4: 30min as a background in movement (without doing anything else) and gave me the same result, that is, a larger file than what is supposed to be; for this case, Encore also transcodes it?
As for the default transcoding, it refers to this (for each element of the project):

Or this, the general configuration of the project:

In the configuration for each element of the project I have modified or used the predefined templates with the same result, the weight of the resulting file does not decrease.
In the case of the general configuration of the project, it only offers predefined options that I can not modify and even if I choose the lowest one, the problem persists (in fact, even if I choose a higher configuration, the resulting file is still the same size)
My knowledge about Encore is limited, I’m sorry if I said some stupid things (including my english XD).
Thank you again for your help.