Long load times are going to see improvements with Bloodborne's 1.03 patch, as well as other performance enhancements. Sony notes that network downtime will be necessary to update server software, and they are targeting 1:00 am PT on a non-Friday to disrupt the smallest amount of users possible.
Developers are going through community feedback concerning game issues, as well as comments on this PlayStation blog post, so be sure to share your findings if you have any. Also check the post for instructions on configuring your router for optimal online play.