Hello ssmall,
Thank you for your inquiry.
We have tested the same scenario using NetDrive version 3.18.1125, copying both 148 small files and a single large file, and the results showed normal transfer speed in our environment.
- Small files: ~835 KB/s
- Large file: ~44.85 MB/s
This suggests that the slow speed you are experiencing might be caused by external factors, such as:
- FTP server performance or location – long distance or high server load can affect speed.
- Firewall or antivirus interference – real-time scanning may slow down file transfers.
- Overhead from small files – FTP can be less efficient with many small files.
- NetDrive configuration – transfer mode or cache settings might impact performance.
If the issue persists, please send us the NetDrive log files from the following path so we can investigate further:
To help us diagnose the issue:
- Please set the log level to VERBOSE
- Reproduce the problem.
- Afterward, please follow the instructions in the following link to send us the debug log file:
Please be aware that the log file does not contain any login credentials.
We will do our best to resolve this promptly.
Best regards,
NetDrive Support Team

