You are building a Power BI model with a large fact table (Sales) that stays in DirectQuery mode against an Azure SQL Database for near-real-time reporting. A small Product dimension table is used both in slicers and in relationships with the DirectQuery fact table. Slicer interactions are slow because every selection sends a query to the source. You want fast slicer responses while still supporting efficient joins to the DirectQuery fact table. Which storage mode should you set on the Product table?