I've been having the same issue. Console.app tells me there's some activity from Daylite.app, likely via CardDAV (how I long for the good old days of Sync Services...). Here's the full support email I sent to Marketcircle, the company that develops Daylite:
Summary:
-------------------------------
Contact.app groups slow to display properly
Description:
-------------------------------
I have several smart groups in contacts.app. None of them display when I click them. Console.app tells me that each time I switch from one group to another, Daylite gets into the act. Here’s what Console has to say:
===============
2016-05-21 14:59:35.852 Daylite[593]: Select duration: 15.003700
2016-05-21 14:59:35.852 Daylite[593]: Resetting unthrottled loop count.
2016-05-21 14:59:35.852 Daylite[593]: ---------------------
2016-05-21 14:59:35.852 Daylite[593]: Waiting for PG Notifs
2016-05-21 14:59:35.917 Mail[610]: Select duration: 15.005252
2016-05-21 14:59:35.917 Mail[610]: Resetting unthrottled loop count.
2016-05-21 14:59:35.917 Mail[610]: ---------------------
2016-05-21 14:59:35.917 Mail[610]: Waiting for PG Notifs
2016-05-21 14:59:50.854 Daylite[593]: Select duration: 15.001960
2016-05-21 14:59:50.854 Daylite[593]: Resetting unthrottled loop count.
2016-05-21 14:59:50.854 Daylite[593]: ---------------------
2016-05-21 14:59:50.854 Daylite[593]: Waiting for PG Notifs
2016-05-21 14:59:50.918 Mail[610]: Select duration: 15.000561
2016-05-21 14:59:50.918 Mail[610]: Resetting unthrottled loop count.
2016-05-21 14:59:50.918 Mail[610]: ---------------------
2016-05-21 14:59:50.918 Mail[610]: Waiting for PG Notifs
===============
Here’s a fuller description of the issue, plus notes from an Apple Store visit:
===============
For some reason, in El Capitan, I click on one group, and I don't get to see that group's members right away.
I click the name of a second group, and I see the names in the first group
I click the name of a third group, and I see the names in the second group.
After a while (1-2 minutes, maybe more depending on the size of the group), the names in the last-clicked group do appear.
Each group is a Smart Group, where I look for text in the Notes field.
May 1, 2016
- Apple Store visit
- likely due to size of db, especially because I fill my contacts with notes consisting of content of emails
=================
Could the issue have something to do with Daylite? Please advise
OS Version: 10.11.5
Hardware: MacBookPro6,2
Daylite for Mac Version: 6.0.3 (387)
Daylite Server Admin Version: 6.0.3 (374)
Trial: No
Database Type: Self-Serve (Direct)