MVTLayer binary prop documentation update

docs/api-reference/geo-layers/mvt-layer.md

@@ -119,14 +119,13 @@ On top of the [default options](/docs/api-reference/core/layer.md#loadoptions),
 
 ##### `binary` (Boolean, optional)
 
-* Default: false
+* Default: true
 
-Use tile data in [binary format](https://github.com/visgl/loaders.gl/blob/master/modules/gis/docs/api-reference/geojson-to-binary.md) to improve performance. It removes the need for serialization and deserialization of data transferred by the worker back to the main process.
+Use tile data in [binary format](https://github.com/visgl/loaders.gl/blob/master/modules/gis/docs/api-reference/geojson-to-binary.md) to improve performance (2-3x faster on large datasets). It removes the need for serialization and deserialization of data transferred by the worker back to the main process. 
 
 Remarks: 
 
 - It requires using `GeoJsonLayer` in the `renderSubLayers` callback.
-- In binary format, there are some rendering issues with polygons or multipolygons which contain holes (the holes won't appear as expected), we're working to fix it for the next release.
 
 ### Callbacks