Due to the enhanced hardware on which the ST/QL Emulator is running, you may find that as with the QXL, Super Gold Card and Gold Card, some programs run too quickly. The command A_SPEED allows you to slow the Emulator down so that you can use these programs. value must be in the range 0..7.
0 allows the Emulator to run at full speed, whereas 7 makes it run very slowly.
SLUG is very similar.