WinSCP 4.3.3 - very high CPU usage

Very high CPU usage with SFTP and FTP downloads and uploads i have.
After for ex. uploading i always might scroll down WinSCP 4.3.3 and so CPU usage starts work normally. :(

I hope that this planned change might fix it:
https://winscp.net/tracker/227

But when?
We start to use another program because of WinSCP is killing our processor.