As a BigQuery admin supporting a team of data consumers who execute ad hoc queries and perform downstream reporting using tools like Looker, you have all data and users consolidated under a single organizational project. Recently, you have observed slowness in query results and need to troubleshoot the cause of these slowdowns. You suspect that the delays might be due to job queuing or slot contention as users initiate jobs, which hampers timely access to query results. Your task is to investigate the query job information to identify where the performance bottlenecks are occurring. What steps should you take to diagnose and address the performance issues?