LayerPanel is always mounted

[stazrad]

The layer panel being mounted causes really slow rendering on the map for large featuresets. It should not be trying to render features in the layer panel while off the screen. just unmount when it shows again...

[ntatko]

It shouldn't be rendering children, provided state is being updated correctly. I agree, this is a bug, but I can't think why it's doing this.

https://github.com/MonsantoCo/ol-kit/blob/76b1c55cd7344921a2822be8163c59ca1948ecb0/src/LayerPanel/LayerPanelBase/index.js#L52-L56

[akuma1]

We are deprecating ol-kit.
You may consider these alternatives:

• Use openlayers directly as recent versions of openlayers provides quite a bit of functionality out of box.
• Additionally , you can take a look at these openlayers libraries.