我在我的web应用程序上有一个Map，它加载一个geojson文件来显示Map上的属性，这包括140k功能。
当Map缩小时，性能非常慢，我正在寻找如何改进的建议。
我使用的是开放层4。
代码如下：

var SolarData = "";
var solarLayer = new ol.layer.Vector();

//addWards
proj4.defs("EPSG:27700", '+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717' +
    ' +x_0=400000 +y_0=-100000 +ellps=airy +datum=OSGB36 +units=m +no_defs');
ol.proj.get('EPSG:27700').setExtent([0, 0, 800000, 1400000]);
ol.proj.get('EPSG:27700').setWorldExtent([-10, 49, 6, 63]);
ol.proj.get('EPSG:27700').setGlobal(false);
ol.proj.get('EPSG:27700').setGetPointResolution(function (resolution) { return resolution; });

var sprojection = new ol.proj.Projection({
    code: 'EPSG:900913'
});

var solarProjection = new ol.proj.Projection({
    code: 'EPSG:27700',
    units: 'm'
});

$.getJSON("/content/property_data.json", function (data) {

    SolarData = data;

    var solarsource = new ol.source.Vector({
        features: (new ol.format.GeoJSON()).readFeatures(SolarData),
    });

    var sfill = new ol.style.Fill({ color: 'rgba(1, 184, 170, 0)' });
    var sstyle = new ol.style.Style({
        fill: sfill,
        stroke: new ol.style.Stroke({
            color: '#212121',
            width: 2
        })
    });

    var solarFeatures = solarsource.getFeatures();
    for (var i = 0; i < solarFeatures.length; i++) {
        var feature = solarFeatures[i];
        feature.getGeometry().transform(solarProjection, sprojection);
        feature.setStyle(sstyle);
        feature.set('name', '');
    }

    solarLayer = new ol.layer.Vector({
        source: solarsource,
    });

    map.addLayer(solarLayer);

}).fail(function (jqXHR, textStatus, errorThrown) {
    console.log("error " + textStatus);
    console.log("incoming Text " + jqXHR.responseText);
});