There are three ways you can improve your performance:
1. You can improve the what, what product do you deliver? Could you make it better?
2. You can improve the who, who delivers it for you? Are they engaged and motivated?
3. You can improve the how, how do you do it? Improve the process. Is it efficient?
I am not sure about the why, when or where. Arguably working from a beach in the Caribbean would be nice but I am not sure how it would improve my performance.