For performance reasons, an interval timer was added in Litium 7.5 for how often a workflow or a smart product list is updated in the background. By default this is set to every 5 minutes (300 seconds). This can be changed by adding the following app settings (API) to Web.config:
<add key="Litium:BackgroundEngine:Product:WorkflowSynchronizationInterval" value="30"/>
<add key="Litium:BackgroundEngine:Product:DynamicProductListSynchronizationInterval" value="30"/>
The time is in seconds.