I have ongoing performance issues I am trying to resolve in a relatively large multi site installation, details can be found in the following related threads:

• Content Selection Performance Issues
• FindPublishedContent: Begin finders is delaying site load time significantly

The dictionary is another contributing factor to the slow response times we are seeing when the site content is uncached. I've had a dig into the core and found the following comment in Umbraco.Web.Dictionary.DefaultCultureDictionary

The ILocalizationService is the service used for interacting with this data from the database which isn't all that fast (even though there is caching involved, if there's lots of dictionary items the caching is not great)

At the moment one partial view has 2 dictionary items and incurs a ~2 second hit. We are looking into possible database performance as well but any advice on how to improve overall performance when using Dictionary items for now until this is fixed?

Thanks, Simon