Faster way to upload InputStream to sftp?

[szdk]

Hello guys, sorry if I'm asking this question at wrong place.

I have an input stream containing file data which I upload to sftp using RemoteFile.write()
However for my case, I've noticed that this method is almost 6 times slower than using SFTPClient.put(FileSystemFile, filename)

The problem is, I do not have file saved locally, I receive it through input stream generated by another program. I do not want to save this file as I dont have enough hardrive available to store it. Therefore RemoteFile.write() is the only way for me, which as i mentioned is almost 6 times slower for me.

Is there a faster way to upload InputStream to sftp? I'm looking for something wich is as fast as SFTPClient.put