el-table渲染慢卡頓問題最優解決方案

#eagleMapContainer{
   overflow-y: auto;
   margin-top: 10px;
   min-height: 150px;
   max-height: 600px;
 }
 #eagleMapContainer::-webkit-scrollbar {
    width: 6px; /*對垂直流動條有效*/
    height: 6px;
  }
  #eagleMapContainer::-webkit-scrollbar-track{
    background-color:rgba(0,0,0,0.1);
  }
  #eagleMapContainer::-webkit-scrollbar-thumb{
    border-radius: 6px;
    background-color: rgba(0,0,0,0.2);
  }
  /*定義右下角匯合處的樣式*/
  #eagleMapContainer::-webkit-scrollbar-corner {
    background:rgba(0,0,0,0.2);
  }

  hanldeScroll(e) {
      // 獲取eagleMapContainer的真實高度
      const boxHeight = document.getElementById('eagleMapContainer').offsetHeight
      // 獲取table_list的真實高度（浮動內容的真實高度）
      const tableHeight = document.getElementById('table_list').offsetHeight
      // boxHeight和滑塊浮動的高度相差小於50 && 不在加載中 && 不是最後一頁 
      if (tableHeight - (e.target.scrollTop + boxHeight) < 50 && !this.loading && this.listPage < (this.tableList.length / 300)) {
        // 第一次觸發時，記錄滑塊高度
        // data裡scrollTop，listPage默認為0
        if (!this.scrollTop) {
          this.scrollTop = e.target.scrollTop
        }
        // 觸發下拉加載更多
        this.queryMoreStat(true, tableHeight, boxHeight)
      } else if (e.target.scrollTop === 0 && !this.loading) {
        // 如果滑塊上拉到頂部，則向上加載300條
        this.queryMoreStat(false, tableHeight, boxHeight)
      }
    }

    queryMoreStat(type, tableHeight, boxHeight) {
      this.loading = true
      // 觸底加載
      if (type) {
        this.listPage = this.listPage + 1
        const centerPage = this.listPage * 300
        const startPage = centerPage >= 300 ? centerPage - 300 : centerPage
        const endPage = centerPage + 600
        const newList = this.tableList.slice(startPage, endPage)
        if (this.listPage > 0) {
          const box = document.getElementById('eagleMapContainer')
          // 視圖跳到觸發的數據，補回50的高度差值
          box.scrollTop = this.scrollTop + 50
        }
        this.list = newList
      } else {
        // 置頂加載
        if (this.listPage > 0) {
          this.listPage = this.listPage - 1
          const centerPage = this.listPage * 300
          const startPage = centerPage >= 300 ? centerPage - 300 : centerPage
          const endPage = centerPage + 600
          const newList = this.tableList.slice(startPage, endPage)
          if (this.listPage > 0) {
            const box = document.getElementById('eagleMapContainer')
            box.scrollTop = tableHeight - this.scrollTop - boxHeight
          }
          this.list = newList
        } else {
          this.list = this.tableList.slice(0, 300)
        }
      }
      this.$nextTick(() => {
        this.loading = false
      })
    }