Transfer speed is slow

[macdjord]

Transfer speed when downloading moderately large files with NppFTP is much slower than it could be. Downloading a 75 MB text file took 10:40; downloading the same file from the same server over the same network with WinSCP took 0:25. Clearly, WinSCP is using some form of compression which NppFTP is failing to take advantage of.

[Nappp]

I found the the reason that slows the transmission down lies deep under the the ground. I compared how NppFtp and EditPlus behaves when downloading a same file in Wireshark. I think that the Window segment in TCP header causes it slow, for NppFtp required 7000-8000 bit of data per transmit, but EditPlus can take 20000-30000.

[chcg]

See #275 with speed up for sftp connections.