Eclipse的JS编辑器响应慢，复制和粘贴时很卡的解决方法

使用的是官网标准版的eclipse for javaEE未装任何插件,写JS时卡的简直无法忍受,尝试去掉所有的validate,包括菜单和项目属性中的都无作用,后来在项目根目录..project中发现以下红色行居然Validator都还在,把红色对应的配置段全部删去后,问题解决,编辑JS再也不似蜗牛了.  <buildSpec>
  <buildCommand>
   <name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
   <triggers>full,incremental,</triggers>
   <arguments>
    <dictionary>
     <key>LaunchConfigHandle</key>
     <value><project>/.externalToolBuilders/org.eclipse.wst.jsdt.core.javascriptValidator.launch</value>
    </dictionary>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>org.eclipse.jdt.core.javabuilder</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>org.eclipse.wst.common.project.facet.core.builder</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
   <triggers>full,incremental,</triggers>
   <arguments>
    <dictionary>
     <key>LaunchConfigHandle</key>
     <value><project>/.externalToolBuilders/org.eclipse.wst.validation.validationbuilder.launch</value>
    </dictionary>
   </arguments>
  </buildCommand>
 </buildSpec>
 <natures>
  <nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
  <nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
  <nature>org.eclipse.wst.common.project.facet.core.nature</nature>
  <nature>org.eclipse.jdt.core.javanature</nature>
  <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
 </natures>