We are happy to share with you that IntelliJ IDEA 13.0.3 update is now available for early preview. The new build fixes the critical Flex performance issues as well as the out-of-memory exceptions on the startup. To give the preview a try, download the new IntelliJ IDEA 133.818 build from our official EAP page.
Find the full list of changes in Release Notes.
Develop with Pleasure!