如何提高ngFor循环的性能？

Question

当ngFor应该呈现7600个字符串项目时，性能会非常慢，浏览器会在几秒钟内冻结。

能以某种方式提高ngFor的性能吗？

ngFor代码：

  <ul *ngIf="isOpen"
    class="nano-drop-down-list"
    dropdownMenu>
    <li class="nano-f-r nano-f-30">
        <input [(ngModel)]="searchString"
               class="nano-f nano-p-0_10 nano-bc-ws hover-effect"
               placeholder="Search..." type="text"/>
    </li>

    <!-- ngFor which should be improved -->
    <li *ngFor="let option of arrayOfOptions | nanoSearchByKey:searchString:displayProperty;"
        [ngClass]="{'active':isOptionSelected(option[valueProperty])}"
        class="nano-f-r nano-f-30 nano-bc-ws hover-effect">
        <button (click)="handleClickOnOption(option[valueProperty]);"
                type="button"
                class="nano-f-c nano-f nano-p-0_10 nano-overflow-h">
            <div class="nano-f-r nano-f">
                <span class="nano-m-aaa0 nano-overflow-e">
                    {{ option[displayProperty] }}
                </span>
                <div *ngIf="isMultiple"
                     class="nano-f-r nano-f-30">
                    <i *ngIf="isOptionSelected(option[valueProperty])"
                       class="fa fa-check nano-m-a"
                       aria-hidden="true"></i>
                </div>
            </div>
        </button>
    </li>
</ul>