the slowness was related to the terminal calls we do and no so much to LFTP or RSYNC (those are very comparable in speed when ran from terminal)
The new improvements are already implemented in the SSH access in the Resource Manager and we will see if we can push the same also for LFTP sync that we use for SFTP connections
Are you sure this has been integrated? An rsync command still runs many times faster, I don't think there was any noticeable improvement. I'm on Wappler 7 beta 18