Most likely it’s the printer and/or its emulation interface.

The only thing that would slow the drawer down aside from the printer itself would be caching, or improper network settings between the terminal controlling it and the focus computer. If the terminal is xp and the focus computer is w7 make sure the w7 has SMB2 turned off in lanmanserver\parameters in regedit. Make sure it has the creditspeed.reg fix on the w7 machines. Make sure the hard drive caching is off on both harddrives as well as the share network caching. Make sure all the advanced network sharing settings are correct and windows isn’t on homegroup or anything.

We’ve seen this with brands other than epson and snbc a lot. Most emulate epson’s software and take an extra ridiculous amount of time on the drawer open command. TB4’s are pretty slow at this along with some other star printers with a serial interface cards. Saewoo’s are really slow at this as well. Make a pass on all the settings, then swap it with a printer that you know opens the drawer fast and you’ll probably find out it’s isolated to that printer.

Make double sure all the RS232 settings on it are proper if it’s serial, then test again. If it’s still slow it’s the printer. I’m not sure which printer or what interface it’s using, but if it has a usb port try it out to see if its any faster or see if the manufacturer will send you a parallel card for testing or even a different printer. We’ve had some saewoo’s that were coming with a terminal run INCREDIBLY slow on serial, and the manufacturer sent us parallel cards and it was immediate. If you don’t have LPT ports on the terminal this doesn’t work then clearly.