Why does sudo zip -o Create an archive several times larger than the weight of files and folders archived in the current folder?

Question

linux

Good afternoon,
I noticed this thing:
In the current folder of files and folders for 270 mb
I do:
sudo zip -o www_latest.zip
An archive of 840 mb is created
This is not very good. In theory, the archive should weigh a little less. than its content, or at least no more.
And if I select files with the mouse and create an archive from the context menu, then an archive of 274 mb is created, which is generally not bad, but:
1) I would like to perform all operations from the command line
2) the second method does not archive hidden files.
How to be? Maybe he didn't deliver the flags?

Answer 1

Do it humanly, not through zip:
tar -czf mybackup.tar.gz /path/to/folder/