Just migrated from HS3 to HS4 and wish I hadn't.

[windracer]

Hmmm…. I have 4768 Devices and 1650 Events. My event.html loads in 2 seconds.

Geez. I only have 10 plug-ins, 362 devices and 132 events but this is on a HomeTroller Pi (RasPi 3 B, 1gb RAM, 32gb micro SD). I've read it could be related to the Z-Wave GUI plug-in (4.1.0.3 BETA) and I do have a lot of Z-Wave devices.

[randy]

You can disable the Z-Wave (or any other) plugin to see if it makes a difference.

That said, the 1gb Pi3 is going to be slow. I ran my system on a Pi4 4gb and it was quite good, not nearly as fast as my Windows machine and very slow loading the Event page. TBH, a dual core Pentium or Atom is slower than I would like on my system.

[jon00]

Just found out about using _events.html and it works so much faster, so I'll be using the old HS3 interface when I need to make mass event changes.

Not for long! The legacy HS3 events page will be removed as it will not work with the new event conditions coming in 4.2.18...

[windracer]

You can disable the Z-Wave (or any other) plugin to see if it makes a difference.

Ahhhh! I found it ... it's not the Z-Wave plug-in, it's HSBuddy! Once I disabled that my events page went back to loading in about 2 seconds. Off to ask about this elsewhere.