As much as I love and recommend Node-RED I have to say in my experience I agree with @SmartHomePrimer - Erratic devices will absolutely kill HE performance and that issue is often magnified the more rules/apps you have on the hub.
If you have a small house multiple hubs may seem like an unnecessary expense and pain so another thing you can do to simplify things is changing RM rules over to using the lighter weight Motion Lighting and Simple Lighting apps if possible. Also a stop-gap measure is to install a rebooter app - I've used Rootin Tootin Rebootin app with good success. While that is not really a solution it may help keep your sanity while the folks at HE figure things out.
