Revamp My Ruby On Rails Website

I need expert assistance to overhaul my existing Ruby On Rails website. The primary focus is on enhancing the site's features and functionality. Specific new features haven't been defined yet, so an innovative and proactive approach would be highly valuable. Please note, the design and aesthetic aspects of the site will be addressed later, hence the current priority is the site's performance and ability to accommodate new functionalities. Ideal skills for this job include:
- Deep understanding of Ruby On Rails
- Experience in web development
- Ability to implement and optimize new features
- Problem-solving skills for performance enhancement

Please also provide examples of similar projects you've completed in the past.