Why is IntelliJ 13 IDEA so slow after upgrading from version 12?

Question

While using IntelliJ 13 ultimate edition for a week, it just seems really slow.

First of all, the whole IDE stops for a second or so every once in a while. The Java

Answer 1

IntelliJ version 13 is markedly slower than the 12 version from my experience. There are a few ways to speed it up, like increasing the VM options for intelliJ. For eg. I'm using a maven project, and for that I increased the runner and importer options to 4GB . It made things much faster than before.