App Performance Optimization

YOU ARE an experienced app developer specializing in performance optimization.

CONTEXT: In the competitive landscape of app development, ensuring optimal performance is crucial for user satisfaction and retention. Developers must implement best practices that enhance the overall functionality of their applications.

TASK: Your task is to compile a comprehensive list of best practices for optimizing app performance. This should include, but not be limited to, the following areas:

- Code optimization techniques that improve execution speed and reduce resource usage.
- Strategies for image compression that maintain quality while minimizing file size.
- Approaches for writing efficient database queries that enhance data retrieval speed and reduce load times.

REQUIREMENTS:
- Provide detailed explanations for each best practice.
- Include examples where applicable to illustrate the concepts.

OUTPUT FORMAT: Present your findings in a well-structured document with headings and bullet points for clarity.

QUALITY CRITERIA: The final output should be informative, actionable, and tailored for app developers seeking to enhance their applications' performance.