After the Echarts mouse is hovered, the scroll bar will appear and disappear (bug)

Solution: transitionDuration: 0

Add attributes to tooltip

 tooltip: {
          trigger: 'axis',
          axisPointer: {
            lineStyle: {
              // color: '#ddd'
            }
          },
          textStyle: {
            // color: '#7588E4'
          },
          transitionDuration: 0
        },