I've noticed that when using a shortcut on Openbox (the ones in ~/.config/openbox/lubuntu-rc.xml)
They tend to react slowly at times. Especially when launching applications.
If I launch fehlstart (application launcher) via a shortcut, it would take 3-4 seconds for it to load up, but on the 2nd time onwards, it would load up almost immediately. Then, if I wait enough time (like 20 minutes), it would again take a while for it to launch (this happens with PCManFM too).
Is this a known bug? Is there a way to profile so I know the point on which the delay is happening?