Thank you for reporting the problem. Over the past year, our user base has increased dramatically. Recently it seems our FTP servers are under very heavy load and may become slow to respond during the peak times. We have made some optimization and the performance is better.
In the meantime, we are upgrading our system to add more capacity. We expect it to be done in the next 7 days. We will also add FTP servers that are only available to premium service users.
FYI, when FTP server is running slow, you can still try DriveHQ FileManager or www.drivehq.com website. They use a different web-based system and the performance could be much better.