title: Typing in build.gradle in IntelliJ Idea is slow
body: <p>So, I got weird problem. 
  I moved from Eclipse to IntelliJ Idea.
  And when I'm typing/editing file build.gradle it's... lagging, very hard to write anything there. What can cause that? Refreshing didn't help. </p>
  
  <p>Added plugin: apply plugin: 'idea'
  But can't see in IntelliJ Idea tasks for idea in Gradle perspective. 
  When I open Eclipse everythings works fine, with Gradle plugin for eclipse I can see these tasks in the project etc. 
  the idea tasks are only available from command line, not from intellij idea gui.</p>
  
  <p>But I want to fix that annoying thing with typing in build.gradle... why it is lagging?!</p>
  
  <p>Please, help.</p>