Since switching from IntelliJ 15 to 2016.2.4, the performance is really bad. Sometimes there is no response for multiple seconds, while typing something.
Edit: It is especially laggy when renaming variables.
I disabled a multitude of third-party plugins and the performance was still as bad.
Also, I enabled CPU profiling, typed for a moment and uploaded it here: https://cloud.jmnw.me/s/lGOCQaRZqLAz834 .
This is the version info from the IntelliJ about screen:
IntelliJ IDEA 2016.2.4
Build #IU-162.2032.8, built on September 9, 2016
JRE: 1.8.0_101-b13 amd64
JVM: Java HotSpot(TM) 64-Bit Server VM by Oracle Corporation
I am on Ubuntu 14.04.5 LTS.