Zorin connect uses sftp protocol to mount android filesystem. Which is cripplingly slow. Is there a better alternative which can allow you to browse filesystem from both ends (zorin to android and android to zorin) which uses a faster protocol ?
You could try anydesk, it has a file manager which let you browse and manage files on the fly.
Depending on what phone you use I use filezilla and a file manager on android that has FTP