Avoid for...in loops
The for…in is more elaborate than the basic for loop because it removes duplicate list elements before enumeration. It is therefore generally more economical to use a simple for loop when the collection is well understood.
Use performance-orientated forks of applications
Open-source software is often forked for better performance. Performance is usually improved by reducing the resources consumed. Consequently, if an optimized fork exists with sufficient technical and functional scope for your project, you should utilize it.