The speed of compression seemed rather slow so I have done some comparisons.
On a 400MB directory:
1. CoreFTP takes 2 minutes 30 seconds to create a 98MB file.
2. Winzip (normal setting) takes 45 seconds to create a 101MB zip file.
3. Winzip (maximum setting) takes 2 minutes 35 seconds to create a 99 MB zip file.
So it seems that CoreFTP is using maximum compression (and doing a better job than WinZip).
However, as the benefit of maximum compression is minimal, could we have an option to choose a normal setting?
(It sure would help me do my testing)