Since upgrading to SQL Server 2012, we have experienced that the editor for Script Task/Component takes around 15 seconds to open. After looking around online, I found some similar cases. But they seem to be related to SQL Server 2008, and the "hacks" no longer seems to have any effect in 2012.
Do you know of this issue and do you have a solution?
Here are some references describing the old issues:
How to stop SSIS from "Phoning Home"
SSIS Script Editor loads very slow
Also just found this issue submitted to MS: https://connect.microsoft.com/VisualStudio/feedback/details/789728/ssis-script-task-component-very-slow-to-open