Hey umm, I tried directly transfer to drive with Filezilla but is too slow and then sometimes too choppy. My Internet is not slow anyway. I think you need to optimize cache system.
For example, If I put some file is like you put on actual hard drive. Unlike you directly put on network drive. And Raidrive goes to upload them to network drive simultaneous for every complete file. And with already feature lifespan for file to be offline available.
Just like Gdrive File Stream. But I loved Raidrive. Because Gdrive File Stream is too much RAM consumption.
Sorry my bad English