I would like to have all the downloaded files in individual folders named by either title or an identifier

For example; my form has "name", "address", "type", and "upload cv".

When I download all submitted CVs, I want each file in a folder identified by "name" instead of the numbers that they usually come.

It is not currently possible to rename the file structure for file uploads.  If you would like to have each file in a separate folder, you can do so when using either Dropbox or Google docs:

https://www.jotform.com/help/192-How-to-Integrate-a-Form-with-Google-Drive

https://www.jotform.com/help/77-Upload-to-Dropbox-with-JotForm