layers.tooltip.showAfter Number(default: 100)

Specify the delay in milliseconds before the tooltip is shown. This option is ignored if showOn is set to "click" or "focus".

Example - set show delay

<div id="map"></div>
<script>
    $("#map").kendoMap({
        layers: [{
            type: "marker",
            tooltip: {
                showOn: "mouseenter",
                showAfter: 1000,
                content: "Foo"
            },
            dataSource: {
                data: [{
                    latlng: [0, 0]
                }]
            },
            locationField: "latlng"
        }]
    });
</script>