Safari is fast at everything, except "Find". When I hit command-F, I get the beachball for 5 to 25 seconds (and then the Find bar appears as normal and everything's good again).
I have plenty of free memory, and the system disk is an SSD with plenty of free space, and my CPUs are almost completely idle.
What could be causing this? Is there something I can do or reset or flush to make it not so slow at this one thing?