Playmaker Slowing Down Unity?

[iEpic]

When I press the play button in a brand new empty scene, it takes about 16 seconds to load and start up.

If I delete playmaker and all of it's scripts, it only takes like 1.5 seconds to load and start playing.

What could be causing the extra 15 seconds to load when I press the play button on an empty scene?

I would love to figure this out because it's driving me crazy.
Thanks in advance for anyone who can help me out.

[Alex Chouls]

What version of Playmaker and Unity are you using?

[iEpic]

I'm using the latest version of Playmaker and Unity version 4.7.2f1

I first downloaded and installed playmaker a couple of years ago, and have been upgrading it. Not sure if that matters or not.

[Alex Chouls]

Do you get the same behaviour in a new project with Playmaker imported or is it project specific?

[iEpic]

A new project with playmaker and it runs instantly when I press play.

My current project probably has a couple hundred FSMs.
Are there certain actions, or events, or things you can do with playmaker that would cause this to happen?
If i delete playmaker from my current project, the problem goes away.

I have tons of old prefabs with FSMs I've made, and tons of FSMs that aren't being used anymore. Should I delete all of the old unused ones, or with this not have any effect at all?