I've recently signed up for Retro Achievements and I use LaunchBox to run the games. The problem with this setup is that the ROMs load too fast for the RA emulators and I was wondering if there were any command line arguments I could add to make the emulators wait a certain amount of time to connect to RA before loading the ROM.

The emulators are:
Gens
Meka
FCEUX
Project64
Snes9x
VBA
Ootake