Several times over the last couple of years, after an update to the Sharepoint platform (2010) we've been left with Nintex WF running incredibly slowly on all the sites where it's in use.

The recommendation from Nintex support, which often seems to work, is to disable and then re-enable the Nintex Workflow features at the site level. This is simple enough but a pain to do across a lot of sites.

It woudl be very useful to have an option, or worst case even a powershell script for farm admins, that would look across all sites, store the current Nintex features that are enabled, then cycle (disable and re-enable) the right ones so we get a "soft restart" that keeps the config unchanged.