Assume that you use a non-English Windows operating system version or locale in System Center Operations Manager. When you open a dashboard performance widget, you may experience a delay of 5 to 10 minutes. If you set your locale to English-US (ENU), the delay does not occur.
This issue occurs when there are multiple management packs that contain both dashboard visualization elements and non-ENU language packs.
When you use a non-English locale, and you open one of the dashboard views, the console enumerates elements in any management pack that contains visualization elements and that has a language pack that matches the systems language or locale. This can cause high CPU usage on the management server. This, in turn, causes a delay in the UI.
To work around the issue, reduce the number of custom management packs that contain visualization elements. For example, designate a single management pack to contain all the dashboard views instead of creating dashboard views in multiple management packs.