I have a question regarding drawing of overlays on map.
Right now we have a performance issue using TiledWMSLayer and InMemoryFeatureLayer, because InMemoryFeatureLayer waits until all tiles of the WMS are drawn.
I have a TiledWMSLayer as background map and several InMemoryFeatureLayer and/or additional TiledWMSLayer.
If one of the layer takes a while getting data, the whole drawing process waits until this layer drawing is done. It looks like the drawing of all overlays is currently synchronous.
Is there a way to enable asynchronous getting of data for drawing? E.g. I want to be able to get data for all available InMemoryFeatureLayer even if the WMS is not finished with drawing of all tiles.