Charts in dashboard and home pages are great excepting that it might take a little to show them depending on your data set sizes. Cache is used to make them shown instantly most of the time.
1. Home Page Cache
Home pages are cached for main modules including Work Order, Asset, Service Request, Inventory, PM, Change, Favorite and Dashboard.
2. Dashboard Cache
The dashboards of main modules are cached including dashboard tabs of Summary, WO Planning and Scheduling (P&S), Asset, Inventory and WO KPI-10.