Hub painfully slow

I have two Hubitat C8 Pros. One in my house, and one in my shop (close by).

They are both on the same network.

The one in my home has the bulk of the devices and works fine. Is responsive, etc.

The one in my shop has about 10 devices and is painfully slow via the web interface.

When I do anything - click on any option (home, rooms, apps, devices, etc.) or any device, it can take about 30 seconds for the screen to update.

I've rebooted both hubs. They are on the latest builds. On the same network / subnet. Logs don't show anything odd that I can see.

Any suggestions on how to diagnose?

Thanks.

do a continuous ping on both hubs' IP addresses, see if you notice a difference. On the slower hub do you have many cloud or LAN integrations? Both of those slowed my hub down.

Also try a different web browser and see if any different results

How long is the cable for the garage/shop? Is there a switch or something between the house and the slow hub? Have you tried moving the slow hub to about the same place as the fast hub?

What are the network settings on the two hubs?

Thanks. I moved the hub about 20 feet. From what I can tell, the nearby WiFi AP may have been causing some interference (speculation). Moving it seems to have solved the problem.