TAC Webstation is very slow open graphics and browsing folders. Especially if the graphics and folders are located on other TAC Vista servers than where the Webstation server is installed.
TAC Vista 5.1.5
TAC Vista Webstation 5.1.5
The problem is the red icon which looks like a exclamation sign placed to the far right in the bar above the graphic or the folder page. If the mouse is placed on the icon you will see the amount of alarms and disabled alarms in the system. To gather this information, the alarms and disabled alarms in the system is what takes time.
This problem is fixed in Hotfix 83 for Vista 5.1.5 and fixed in the Vista 5.1.7 release.