Launchbox boots up fast when you install it and everything is great ....
It's a pity that once you start adding systems to it, it gets soooooo slow it borders on being unusable (no matter what you turn on/off etc)
For something that looks so great, it really is poor overall in comparison to other Frontends where loading speeds and general usage are concerned.
Put just the Arcade system in LB for example and it's perfec, quick searching, navigation, boot, closing etc .... but if you put 50+ system on it then forget about fast anything.
No disrespect intended here, but maybe the creator needs to pass the code to someone else to have a look at and see if there is a way to get it all running faster generally, be it booting up, closing down etc ?
The only other option is starting from scratch and fixing it.