Python Script Optimization for Data Processing

I have a Python script that is currently executing slowly while processing small data sets (up to 100MB). The script is primarily used for data processing and is in need of optimization to improve its execution speed.

Key Requirements:
- Expertise in Python with a strong focus on script optimization
- Experience in data processing
- Problem-solving skills to identify bottlenecks and enhance performance

Please only bid if you can help me fix this issue and make the script run faster. Thank you!