vue-cli 首屏加载优化问题

router/index.js 路由相关信息,该路由文件引入了多个 .vue组件
import Personal from \'@/components/page/Personal\'
import Message from \'@/components/personnal/Message\'
import Settings from \'@/components/personnal/Settings\'
import Setlanguage from \'@/components/personnal/children/Setlanguage\'

const Personal = r=>require.ensure([],()=>r(require(\'@/components/page/Personal\')),\'personal\');
const Message = r=>require.ensure([],()=>r(require(\'@/components/personnal/Message\')),\'personal\');
const Settings = r=>require.ensure([],()=>r(require(\'@/components/personnal/Settings\')),\'personal\');
const Setlanguage = r=>require.ensure([],()=>r(require(\'@/components/personnal/children/Setlanguage\')),\'personal\');