The best indicator of the performance of a web application is the average response time. This metric measures how long it takes for the web server to process and deliver a request from the client. It reflects the user's perception of how fast or slow the web application is, and it affects the user's satisfaction, engagement, and conversion. A low average response time means that the web application is responsive and efficient, while a high average response time means that the web application is sluggish and unreliable.
HTTP server error rate, server thread count, and server uptime are not as good indicators of the performance of a web application as the average response time. HTTP server error rate measures how often the web server fails to handle a request and returns an error code, such as 404 (Not Found) or 500 (Internal Server Error).
This metric indicates the reliability and availability of the web application, but it does not capture how fast or slow the web application is. Server thread count measures how many concurrent requests the web server can handle at a given time. This metric indicates the scalability and capacity of the web application, but it does not capture how long each request takes to process. Server uptime measures how long the web server has been running without interruption. This metric indicates the stability and resilience of the web application, but it does not capture how well the web application performs during that time.
References:
10 Key Application Performance Metrics and How to Measure Them - Stackify1 Measuring performance - Learn web development | MDN2 Understanding the Basics of Web Performance | BrowserStack3
14 Important Website Performance Metrics You Should Be Analyzing4
Top 8 Web Application Performance Metrics | MetricFire Blog5
Web Performance Monitoring: A How to Guide for Developers - Stackify6

This directly addresses the gap for new hires, creates a consistent expectation regardless of hiring date, and formalizes the process within organizational policy.
References
ISACA CISA Review Manual (Current Edition) - Chapters on Information Security Policies, Training and Awareness Industry Best Practices for Security Awareness - Emphasize the importance of timely and comprehensive training for new employees.

The best way to reduce the immediate risk associated with using an unsupported version of the software is to segregate the outdated software system from the main network. An unsupported software system may have unpatched vulnerabilities that could be exploited by attackers to compromise the system or access sensitive data. By isolating the system from the rest of the network, the organization can limit the exposure and impact of a potential breach. Verifying all patches have been applied to the outdated software system, closing all unused ports on the outdated software system and monitoring network traffic attempting to reach the outdated software system are also good practices, but they do not address the root cause of the risk, which is the lack of vendor support and updates. References:
CISA Review Manual, 27th Edition, page 2951
CISA Review Questions, Answers and Explanations Database - 12 Month Subscription

EVA is a project management technique that measures the performance of a project by comparing the actual work completed, the actual costs incurred, and the planned costs for the work scheduled. EVA can help determine if the project is on track, ahead of schedule, or behind schedule, and if the project is under budget, over budget, or on budget. EVA can also help forecast the final cost and schedule of the project based on the current performance.
References
ISACA CISA Review Manual, 27th Edition, page 255
18. Project Completion - Project Management - 2nd Edition
How to Measure Project Success | Smartsheet