用bindtouchmove做页面元素view的缩放时，

在安卓上，感觉很明显的卡顿现象，手指移动离开后，过了大约500s才开始缩放，在ios上就很顺畅，社区的开发人员能解决一下么？在线等，着急…

moveEvent: function (e) {

   //单点触摸

   if (e.touches.length == 1) {

     console.log(‘单点’)

     return;

   } else if (e.touches.length == 2) {

     console.log(‘双点’)

let x = app.globalData.left;

     let y = app.globalData.top;

     let x1 = e.touches[0].pageX;

     let y1 = e.touches[0].pageY;

     let x2 = e.touches[1].pageX;

     let y2 = e.touches[1].pageY;

     let xMove = x2 - x1;

     let yMove = y2 - y1;

     let newDis = Math.sqrt(xMove * xMove + yMove * yMove);

     let newDistances = Math.sqrt(((e.touches[1].clientX - e.touches[0].clientX) * (e.touches[1].clientX - e.touches[0].clientX)) + ((e.touches[1].clientY - e.touches[0].clientY) * (e.touches[1].clientY - e.touches[0].clientY)));

     let distances = that.data.distances;

     let oldDis = that.data.distance;

     //let scale = newDis / oldDis;

     let scale = that.data.scale + 0.0003 * (newDistances - distances);

     console.log(scale);

   that.setData({

           scale: scale

         })

}