Background: I am using PM as the display application on 3 different Mac Mini's that are networked (gigabit hardwired and local) to another Mini (faster CPU and 16 gig memory that has all the photos on it) on site to display photos to clients at figure skating competitions. I just recently (last week) bought a new license to run the latest version on the 3 display stations. There is nothing else installed nor running on these display stations except for PM. I have changed to default configuration to clear the cache (and sort) after 1 day. They do get a lot of use, and periodically we go through and shut the tabs down (could be a number of them). Mavericks is the OS on the mini's and it is current.
I randomly have a problem where PM slows to a crawl, a really slow crawl... The number of photos loaded on a tab could be 100-200 max. I see a message in the bottom left saying something to the effect of "loading sort cache (or something like that). But, it can hang for several minutes which is not really good when we are busy.
The connectivity to where the files reside does not seem to go away. Since PM will not respond, we quite often have to force it to quit or even reboot the computer. Is there any configuration changes that should be made other than the default settings on the cache page? I have changed the default sort to arrangement - but sometimes we use 2 cameras and that gets the photos out of sync for time. Any other ideas on where to look for an answer?