AlloyTouch 列表子元素过多造成卡顿 ，是怎么回事

[joyhao]

{{item.name}} {{item.tag}}

                </div>
                <div class="three-footer xh-text-center">
                    <p class="ng-checkLimit xh-marginTop-40 xh-color-000 xh-text-left over-flow-6" data-over="6">
                        {{item.content}}
                    </p>
                    
                   <!-- <button class="over-flow-btn btn none" type="button" data-rotate="rotate" ng-click="vm.checkLimitText($event)"><i></i></button>
                    <div class="xh-marginTop-30 ng-gallery xh-text-left floatfix">
                        <figure class="pull-left " ng-class="item.images.length==1?'gallery-item-full':'gallery-item'" ng-repeat="img in item.images">
                            <a href="{{img.imageUrl}}" data-size="1672x1020">
                                <img src="{{img.imageUrl}}" alt="" data-pin-nopin="true">
                            </a>
                        </figure>
                    </div>
                    <label class="xh-color-797878 xh-paddingTop-30 xh-size24 xh-block xh-text-left autoRefreshTime"  data-time="{{item.creationTime}}">{{item.creationTime|friendDatetime}}</label>-->
                </div>
            </li>

//注释掉一部分 就不会卡了，怎么回事