Hi mrsteveman1,
Yes, every time a user changes context (i.e. changes workspace, or selects a tag) the tabs are redrawn when selecting them. Preloading them in the background would certainly improve performance, however at the cost of burdening the server with unnecessary requests if the user doesn't click on the tabs.
However, it would be quite safe to assume that context changes won't happen too often, and that one could for example disable preloading the overview tab, which is the costlier one... anyway, things we could eventually consider. Thanks for the suggestion..