Below are the results of the Lucene nightly geo shape benchmarks based on the master branch as of that point in time.
This test indexes a 13M polygons subset exported from the full (as of 23/05/2019) OpenStreetMaps corpus, including every polygon inside the UK, and 10% of polygons from remaining areas, using vector based LatLonShape to test search performance for different spatial operations using various shapes. The London boroughs polygons come from here (33 polygons, average 5.6K vertices).
On each chart, you can click + drag (vertically or horizontally) to zoom in and then shift + drag to move around, and double-click to reset. Hover over an annotation to see known changes. Click on a point to see the exact source git revision that was run.