I am experimenting with the navigation menu in the header, which can be easily edited in the admin section on 'wp-admin/nav-menus.php'.
It seems that I have way too many menu items, and this is causing the a timeout (configured at 30 seconds). I increased this to 60 seconds (in the 'php.ini' file, and the operation completes, but the slowness is obviously not acceptable.
Is there any way this process can be sped up? More specifically, could I directly access the database and change the values for the menu items? If so which tables would I need to look at, and how would I go about it?