This might be the single reason to upgrade to version 9.
In the Jetbrains website, one of the features of 9 is:
New background-enabled file indexing allows you to start using essential editing features almost immediately. All the advanced features become available in minutes.
Kudos to Jetbrains for fixing this. I would love to see IDEA faster load times.
Also this one for Android fanatics, especially you can directly program in Java
A bundled Android plugin enables you to create, run and debug Android applications on both the emulator and the real device. It also supports error highlighting and code completion inside manifest and layout files, navigation between code and resources, and other productivity features.
I will definitely upgrade to 9!!