Restore db

My server has a daily routine to import a dump file, however its taking long time to finish it.

The original db has around 200 MB and takes 3~4 minutes to export (there are many blob fields), however it takes 4 hours to import using pg_restore.

What can I do to tune this database to speed up this restore??

My current db parameters are:

shared_buffers = 256MB

maintenance_work_mem = 32MB

Any suggestion is very welcome.

Thank you.

Alex