Optimizing startup time

Hi all, I'm checking to see if there's a way I can look to optimize the JARs verification stage of startup. I see

running with -startuptracker I see

Startup tracker: seconds elapsed: [2], message: [JARs download enter]
Startup tracker: seconds elapsed: [2], message: [JARs download complete]
Startup tracker: seconds elapsed: [2], message: [JARs verification enter]
Startup tracker: seconds elapsed: [20], message: [JARs verification complete]

So 18 seconds to verify the JARs. Is there something I can do (in a secure way of course) to optimize these values ?