Which process should be installed on any node where the Application Server is installed for better performance?

The correct choice in this context for improving performance on any node where the Application Server is installed is the Administration Agent. This component is designed to manage the resources and performance of Tableau Server, particularly in a distributed environment.

The Administration Agent works by monitoring the status and performance metrics of various server processes. It is essential for load balancing, ensuring that resources are utilized efficiently across multiple nodes. This helps to optimize the overall performance of Tableau Server, especially in scenarios with high user demand or large datasets. By having the Administration Agent installed, you can ensure that the Application Server operates at peak efficiency, thus enhancing user experience and responsiveness.

In contrast, the other options do not directly contribute to performance on the Application Server node. Data Source Properties is more about the configuration of data connections rather than server performance. The Gateway primarily handles incoming requests and routes them appropriately, but it is not specifically geared towards improving performance at the Application Server level. Likewise, the Cluster Controller manages the clusters of nodes within Tableau Server but does not enhance the performance of the Application Server directly. Therefore, the Administration Agent is the most relevant choice in this scenario.