The find command will take long time, the fastest way to search for file is using locate command, which looks for file names (and path) in a indexed database (updated by command updatedb).
The result will appear immediately with a simple command:
locate {file-name-or-path}
If the command is not found, you need to install mlocate package and run updatedb command first to prepare the search database for the first time.
More detail here: https://medium.com/@thucnc/the-fastest-way-to-find-files-by-filename-mlocate-locate-commands-55bf40b297ab