What is the reason for the significant impact on performance caused by code refactoring?

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Code refactoring can have a significant impact on performance for several reasons:

1. Improved code structure: By refactoring, the code structure can be improved, making it easier to read, understand, and maintain. This can help developers identify and fix performance issues.

2. Reduced code complexity: Refactoring can help reduce code complexity by removing unnecessary code or breaking complex code into smaller, more manageable chunks. This can help improve performance by reducing the amount of processing power required to execute the code.

3. Optimized algorithms: Refactoring can lead to the optimization of algorithms and data structures used in the code. This can improve performance by reducing the time and resources required to execute the code.

4. Elimination of technical debt: Refactoring can help eliminate technical debt, which is the cost of maintaining and supporting poorly written or outdated code. Eliminating technical debt can help improve performance by reducing the time and resources required to maintain and support the code.