Zooming and pannig is freezing when load GeoJson


I’m using flutter_map dart package to develop an application to load some shapes in geojson format. Right now I’m just loading 1000 polygons. Everything is fine when the user zooms in, zoom out on android , but on the web when trying to pan the map (panning behavior) or zoom, it doesn’t seem to move until 8 or 9 seconds ago.

Any helps? Thanks.