Change the default of the enable_names option to false in the create_model function

[datejada]

Description

We create the model with names for debugging purposes. However, this can increase the model creation by 30% (see #936). So, it will be better to have this option as false by default, but we need to update the docs and provide an example to show users how to enable the names for debugging.

Actions:

• Change the default value in the function
• Create a how-to in the docs showing how to enable the names and the implications of the time creation