When using RA.FTP against a Titan FTP server (https://titanftp.com/) the transfer can be slow.
For the moment we only found the problem with SFTP GET.
This is a known problem between the Titan FTP solution and the JSCH library used by RA.FTP see http://www.jcraft.com/jsch/ChangeLog
It appears that the correction in JSCH 0.5.4 does not work with RA.FTP v4.0.5
While the FTP is slow it does still work
Update to a fix version listed below or a newer version if available.
version and release date to be determined