Upgraded from Server 2008 to 2016 poor performance Hm, so do you currently have the latest version of the software installed on this 2016 machine? Checking out the logs would really help in performance-related cases like that, but before opening a support ticket try disabling the file cache:
- Click Drive tray icon and choose Options
- Select a mapped drive and press Edit > Edit advanced options
- Uncheck "Use file cache" option
- Find the cache directory in Options > Advanced
- Navigate to that directory with Windows Explorer and delete all its contents