Hi,
I’m sorry for the late reply – I’ve been busy investigating a few bugs related to the latest release.
Unfortunately the DFFS backend runs a bit slow on IE – especially when used on SP 2007 or 2010 as these SharePoint versions forces IE into either “quirks mode” (SP 2007) or “IE 8 mode” (SP 2010).
If you are unable to use a modern browser like Chrome or Firefox you might be able to speed up IE 11 by bringing up the developer console (hit F12) and setting “Document mode” and “User agent string” to IE 11 in the “Emulation” tab.
Please note that these changes only stick as long as the dev console is open.
Let me know how this works out.
Best regards,
Alexander