Optimizing Code Performance

I've been working on a resource-intensive application, and I've noticed some performance bottlenecks in my code. What are some advanced techniques and best practices for optimizing code performance, particularly in terms of memory management and efficient algorithm design? Are there any tools or methodologies you recommend for profiling and identifying performance issues? I'm eager to learn from experienced programmers who have successfully fine-tuned their code for maximum efficiency. Thank you source :CCSP Course