Keychain slow after upgrading to El Capitan 10.11.6 (15G31)

Hello everyone,

I updated the other day to OS X El Capitan 10.11.6, and suddenly I've noticed that keychain performance has dropped dramatically. Before, when I would go to login to a website, my username and password would be prepopulated when I arrived at the page. Now, it sometimes takes 5 to 10 seconds, during which time Safari just hangs and I waste short amounts of time. Any insights into this?

Thanks