How to display verbose logging?

[Schwartz-Matthew-bah]

Hi, I am trying to understand why go-licenses executes more slowly in Github Actions than locally.

Running the help command shows that there is a flag for verbosity that takes a number as a parameter

  -v, --v Level                          number for the log level verbosity

What are the possible numbers to pass to this value?

Also second question - is it a known issue that this tool runs more slowly in a Github Action than local?