7千条数据,搜寻卡顿

<el-select v-model="query.enterpriseId" filterable :filter-method="enterpriseSearchF" placeholder="请抉择企业名称" clearable>  <el-option v-for="item in conInputShowList" :key="item.id" :label="item.companyName" :value="item.id" :disabled="item.disabled">  </el-option></el-select>
data() {  return {    conInputShowList: [], // 显示的数据    conInputList: [], // 原始接口数据  }},
// 自定义搜寻条件enterpriseSearchF(val) {  const moreVal = '输出更具体的条件查问更多数据';  const maxNum = 100; // 超出量,超出只显示此量的数据。  const key = 'companyName'; // 数据key,须要搜寻的字段  if (val) { //val存在    this.conInputShowList = this.conInputList.filter((item) => {      if (item[key].indexOf(val) > -1) {        return true      }    })    if (this.conInputShowList.length > maxNum) {      this.conInputShowList = this.conInputShowList.slice(0, maxNum);      const temp = {        disabled: true      }      temp[key] = moreVal;      this.conInputShowList.push(temp);    }  } else {    this.conInputShowList = this.conInputList.slice(0, maxNum);    const temp = {      disabled: true    }    temp[key] = moreVal;    this.conInputShowList.push(temp);  }  const allTemp = {    id: null  }  allTemp[key] = '全副';  this.conInputShowList.unshift(allTemp);},