Sharing a screenshot of the flowscript helped. Indeed the delay here is caused by the many uses of Macros. The problem is that right now all Macros are being initialized when the root flowscript is enabled, so if there are a lot of Macros there (like in your case) initialization will be slow.
I will fix this in the next update so that each Macro is instead initialized only when it is needed and this change will greatly increase the performance for when using a lot of Macros.
Gavalakis
