效果图：

一点都不卡

话不多说，直接上码

<template>
  <div class="container">
    <h3 class="table-title">el表格 + 分页</h3>
    <el-table :data="tableList.slice((currentPage-1)*pageSize, currentPage*pageSize)"
     border height="350"
      style="width: 70%; margin-bottom: 5px;"
    >
        <el-table-column prop="id" label="ID" width="100">
        </el-table-column>
        <el-table-column prop="name" label="Name" width="200">
        </el-table-column>
        <el-table-column prop="age" label="Age" width="100">
        </el-table-column>
        <el-table-column prop="address" label="Address" width="300">
        </el-table-column>
    </el-table>
    <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :page-sizes="[100, 200, 300, 400, 500]"
        layout="prev, pager, next, sizes, total"
        :current-page="currentPage"
        :page-size="pageSize"
        :total="total"
    />
  </div>
</template>

<script setup>
import { ref, reactive, onMounted } from 'vue'

const tableList = ref([])
const currentPage = ref(1)  // 当前第几页
const pageSize = ref(100)   // 每页显示几条数据
const total = ref(0)


const getDatas = () => {
    // 获取表格数据
    for (let i = 0; i < 100000; i++) {
        tableList.value.push({
            id: i + 1,
            name: `name-${i + 1}`,
            age: Math.floor(Math.random() * 100) + 1,
            address: `address-${i + 1}`
        })
        total.value = tableList.value.length
    }
}
onMounted(() =>{
    getDatas()
    console.log('tableList', tableList.value);
    console.log('total.value', total.value);
    
})
// 每页显示几条数据
const handleSizeChange = (val) => {
    pageSize.value = val
    console.log('pageSize.value-每页显示数据条数：', pageSize.value)
}
// 当前第几页 - 切换上/下一页
const handleCurrentChange = (val) => {
    currentPage.value = val
    console.log('currentPage.value-当前页码：',currentPage.value); 
}

</script>

<style scoped>
.container {
    padding: 20px;
}
.table-title {
    margin-bottom: 20px;
}
</style>