You can set Monitorable with area_set_monitorable, but I cannot find a way to set Monitoring, which I believe would massively reduce lag in my game.
Anyone? It really feels like Monitoring should be exposed.
Is the property not in the node inspector when you select the Area2D node? If not, then a feature request on the Godot GitHub repository should, probably, be opened so this can be added.
I'm creating the areas with a Physics2DServer. I only have access to the areas RID, which is opaque. I should be able to adjust this parameter through the Physics2DServer, but I assume someone (understandably) neglected to expose it.
I'll have to concur with @TwistedTwigleg sounds like something worth opening an issue report over.
Alright, I'll do that. Thanks.