Is system optimizing necessary to improve the performance of my PC?

System optimizing can improve the performance of your PC, however it isn’t always necessary. A number of factors can cause decreased performance on a computer, including hardware issues, software bugs, outdated drivers, and insufficient memory. It is often best to first diagnose what could be causing the performance issues before attempting any optimization. For more advanced users, using system optimization tools like CCleaner can help identify and fix areas of inefficiency.