Improve file search performance by optimizing the search algorithm

[pgnikolov]

The current file search algorithm does not scale well with large directories. I propose optimizing the search algorithm to reduce its time complexity.

Original version took: 0.0145 seconds
Optimized version took: 0.0068 seconds
Performance improvement: 52.99% faster

Proposed changes:

• Refactor the file search function to use a more efficient algorithm.
• Optimize performance for large directories (over 1000 files).
• Add comments to explain the improvements.

I would appreciate any feedback or suggestions on this approach.