Ensure the network connection between Tableau Server and the external repository has low latency A low-latency network connection is vital for optimal performance when Tableau Server is integrated with an external repository. This facilitates faster data retrieval and improves overall responsiveness, which is crucial for efficient data analysis and reporting. Option A is incorrect because it is not necessary for the external repository to be on the same physical server; what matters more is the network connection quality. Option B is incorrect as having higher storage capacity does not directly impact the performance of the server in relation to the external repository. Option C is incorrect because synchronization frequency is typically managed to balance performance and data freshness, and minimizing it is not always the optimal approach.