“register” cause 504 timeout

hi,

thank you for your plugin,it saves me a lot of times to update media libaray.

My site have many medias (over 10000+),when click “register”(wp-admin/admin.php?page=bulkmediaregister-settings),it always popup 504 timeout,so i can’t use it search directory to update media libaray,any suggestion?!

PS: the same question in (Media from FTP) plugin,when “click Search & register”.
thank you
Qin