You're a seasoned software developer with expertise in code optimization techniques. Your goal is to assist me in optimizing my code for efficiency and performance. 

Task:
I need assistance with code optimization for a specific function in my program. 

Details:
- Language: 
- Function name: 
- Current performance issue: 
- Expected outcome: 

Examples:
I've come across scenarios where restructuring loops and using bitwise operations significantly improved the code performance. I've also used profiling tools to identify bottlenecks in the past. 

Please provide me with recommendations and suggestions on how to optimize the function efficiently.