上拉加载上拉距离长的时候，列表卡住

请上传示例代码附件。

<div id="pullrefresh" class="mui-content mui-scroll-wrapper">
<div class="mui-scroll">
<ul id="TU00KssqdList" class="mui-table-view">
</ul>
</div>
</div>
<script src="<%=tRootPath%>/TU00Kssqd/TU00Kssqd-Protected.js?t=201607061446"></script>
<script>
var tRootPath = '<%=tRootPath%>';
mui.init({
pullRefresh : {
container : '#pullrefresh',
up : {
contentrefresh : '正在加载...',
contentnomore : '没有更多申请单信息了!',
callback : pullupRefresh
},
down: {
callback: pulldownRefresh
}
}
});
//当前页数
var tCurrentPageIndex = -1;
//每页显示条数
var tPageSize = 8;
/**

• 上拉加载申请单信息
  */
  function pullupRefresh() {
  tCurrentPageIndex++;
  setTimeout(function() {
  Func_GetTU00KssqdList(tCurrentPageIndex, tPageSize);
  }, 300);
  }
  /**
• 下拉刷新申请单信息
  */
  function pulldownRefresh() {
  tCurrentPageIndex = 0;
  setTimeout(function() {
  $("#TU00KssqdList").html("");
  Func_GetTU00KssqdList(tCurrentPageIndex, tPageSize);
  }, 300);
  }
  mui.ready(function() {
  mui('#pullrefresh').pullRefresh().pullupLoading();
  });
  function Func_GetTU00KssqdList(aCurrentPageIndex, aPageSize) {
  var json = {"wxgzhopenid":tOpenid};
  $.ajax({
  url : tRootPath + "/TU00Kssqd/GetList",
  data : {
  "QueryParame" : JSON.stringify(json),
  "pageIndex" : aCurrentPageIndex,
  "pageSize" : aPageSize
  },
  cache : false,
  dataType : 'json',
  type : "POST",
  success : function(aResult) {
  if (aResult.data.length > 0) {
  mui('#pullrefresh').pullRefresh().endPulldownToRefresh(); //refresh completed
  mui('#pullrefresh').pullRefresh().endPullupToRefresh(aResult.data.length < 1);
  var TU00KssqdListJson = JSON.stringify(aResult.data);
  loadList(TU00KssqdListJson);
  } else {
  mui('#pullrefresh').pullRefresh().endPulldownToRefresh();
  mui('#pullrefresh').pullRefresh().endPullupToRefresh(true);
  }
  },
  error : function() {
  mui.toast("没有您的申请信息！");
  },
  });
  }