If your ONE application is responding slowly, there are a few things you can try to speed it up.
Open the Preferences - General window in SpiderOak. Select "disable disk space calculation". This will prevent SpiderOak from assessing the amount of data located in each drive, which will reduce the time it takes to display information in the Backup tab.
Still in SpiderOak ONE's preferences, go to the Backup tab, uncheck 'Enable Preview Generation', and restart the application. There is a known issue right now where attempting to generate previews for corrupted or especially large images can cause ONE to crash.
Please make certain you have added SpiderOak to your whitelist in any security software you have running. Although this is most often an issue on Windows, we have sometimes seen this be an issue on Mac and Linux as well.
On Windows, disable the "Enable OS integration" option, which is likewise found in Preferences - General.
If the computer on a network with roaming profiles, folder redirection, or shared drives, these have all been known to cause GUI slowdown. Disconnecting or disabling these types of drives often speeds up.
This can also happen on Windows if there is an enabled floppy drive option in the Windows Device Manager, whether or not the computer actually has a floppy drive. To check this, open Windows' Device Manager and see if there is a listing for a floppy drive. If you do, delete or disable this drive, then reopen ONE.
An especially large new file (such as an encrypted disk image or a virtual machine image) that consists of all new, unrelated data blocks can take a long time to compress and encrypt, which can affect the user interface's responsiveness.