I have a very large set of polygons to display, and I cannot find a way to load them that is sufficiently fast and perfomant. I have tried GeoJSON, but loading is extremely slow.
I also just tested a large GeoJSON dataset on the new GeoJSONLayer that Rene mentioned. It works great, and is faster than a map service - GeoJSONLayer | ArcGIS API for JavaScript 4.14 .
decreasing coordinates to tenth would yeild you 11.1KM precision.. what good is 'well its around 11KM there'? I know of maybe 1% of business requests you could get away with Regional precision mapping. Most if not all Mapping should be and needs to be at least 5 precision points.