Clone CD Read Speed

[tupandas]

Is there a way to control the read speed of Clone CD version 4.0.1.6? I have been trying to make a backup of Sims Vacation. The read was successful and the write was successful, but the game will not play. I have written the game at speeds as low as 2X. I am assuming at this point that the game might not have been read properly, so maybe there is a way to slow down the read speed. If anyone knows how please let me know. Thanks.