I need an expert to create an app for multiplayer pc games

I am looking for an expert freelancer to create an app for multiplayer PC games. The app should be developed for the Windows platform. The specific functionality that the app should have is performance tracking. I would like the freelancer to create new design elements for the app.

Ideal skills and experience for the job include:
- Proficiency in app development for the Windows platform
- Experience in creating apps with performance tracking functionality
- Strong design skills to create new design elements for the app