Virtual Scrolling in Vue Schedule component

<template>
    <div id='app'>
        <div id='container'>
            <ejs-schedule id='Schedule' ref='ScheduleObj' width='100%' height='550px' :selectedDate='selectedDate' :eventSettings='eventSettings' :group='group'>
                <e-views>
                    <e-view option='TimelineMonth' :eventTemplate='timelineEventTemplate' :allowVirtualScrolling='virtualScroll'></e-view>
                </e-views>
                <e-resources>
                    <e-resource field='OwnerId' title='Owner' name='Owners' :allowMultiple='allowMultiple' :dataSource='ownerData' textField='Text' idField='Id' colorField='Color'>
                    </e-resource>
                </e-resources>
            </ejs-schedule>
        </div>
    </div>
</template>
<script>
    import Vue from 'vue';
    import { generateResourceData, generateStaticEvents } from './datasource.js';
    import { SchedulePlugin, TimelineViews, TimelineMonth, Resize, DragAndDrop } from '@syncfusion/ej2-vue-schedule';
    Vue.use(SchedulePlugin);

    var timelineEventTemplateVue = Vue.component('timelineTemplate', {
        template: `<div class='template-wrap' style='{background: data.PrimaryColor}'>
            <div class="subject" style='{background: data.SecondaryColor};'>{{data.Subject}}</div></div>`,
        data() {
            return {
                data: {}
            };
        }
    });

    export default {
        data: function () {
            return {
                selectedDate: new Date(2018, 4, 1),
                timelineEventTemplate: function (e) {
                    return {
                        template: timelineEventTemplateVue
                    };
                },
                allowMultiple: true,
                virtualScroll: true,
                group: {
                    byGroupID: false,
                    resources: ['Owners']
                },
                ownerData: generateResourceData(1, 300, 'Resource'),
                eventSettings: { dataSource: generateStaticEvents(new Date(2018, 4, 1), 300, 12) }
            }
        },
        provide: {
            schedule: [TimelineViews, TimelineMonth, Resize, DragAndDrop]
        }
    }
</script>
<style>
  @import "../../node_modules/@syncfusion/ej2-base/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-buttons/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-calendars/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-inputs/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-navigations/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-popups/styles/material.css";
  @import "../../node_modules/@syncfusion/ej2-vue-schedule/styles/material.css";

  .e-schedule .template-wrap .subject {
        padding: 10px 25px;
    }

    .e-schedule .template-wrap {
        width: 100%;
    }

    .e-schedule .e-timeline-month-view .e-resource-left-td {
        width: 150px;
    }
</style>

export function generateStaticEvents(start, resCount, overlapCount) {
    let data = [];
    let id = 1;
    for (let i = 0; i < resCount; i++) {
        let randomCollection = [];
        let random = 0;
        for (let j = 0; j < overlapCount; j++) {
            random = Math.floor(Math.random() * (30));
            random = (random === 0) ? 1 : random;
            if (randomCollection.indexOf(random) !== -1 || randomCollection.indexOf(random + 2) !== -1 ||
                randomCollection.indexOf(random - 2) !== -1) {
                random += (Math.max.apply(null, randomCollection) + 10);
            }
            for (let k = 1; k <= 2; k++) {
                randomCollection.push(random + k);
            }
            let startDate = new Date(start.getFullYear(), start.getMonth(), random);
            startDate = new Date(startDate.getTime() + (((random % 10) * 10) * (1000 * 60)));
            let endDate = new Date(startDate.getTime() + ((1440 + 30) * (1000 * 60)));
            data.push({
                Id: id,
                Subject: 'Event #' + id,
                StartTime: startDate,
                EndTime: endDate,
                IsAllDay: (id % 10) ? false : true,
                OwnerId: i + 1
            });
            id++;
        }
    }
    return data;
}

export function generateResourceData(startId, endId, text) {
    let data = [];
    let colors = [
        '#ff8787', '#9775fa', '#748ffc', '#3bc9db', '#69db7c',
        '#fdd835', '#748ffc', '#9775fa', '#df5286', '#7fa900',
        '#fec200', '#5978ee', '#00bdae', '#ea80fc'
    ];
    for (let a = startId; a <= endId; a++) {
        let n = Math.floor(Math.random() * colors.length);
        data.push({
            Id: a,
            Text: text + ' ' + a,
            Color: colors[n]
        });
    }
    return data;
}