2Functional vs Performance RequirementsWhen defining functional vs performance requirements, the first one should address what a system should do and the second what level of quality should be met.
4How to troubleshoot game performance problems? — — Performance OptimizationGood game performance is a necessary component for quality gameplay. However, Game performance problems caused by bugs, hardware problems, or inefficient coding, such as slow frame rates, can often occur and negatively affect the player experience.