Flutter-Web POC Development from Git

I need a Flutter-Web proof of concept (POC) built from an existing Git project to evaluate its feasibility. This POC should address performance and speed, compatibility with web browsers, and the user interface and responsiveness.

Key Requirements:
- Build a Flutter-Web POC from an existing Git project
- Assess performance and speed
- Check compatibility with various web browsers
- Ensure user interface and responsiveness are up to standard
- Implement data synchronization functionality

Ideal Skills:
- Proficient in Flutter and web development
- Experience with Git
- Strong understanding of performance testing
- Expertise in UI/UX considerations for web compatibility
- Knowledge of data synchronization processes in app development

The main goal of this project is to test the feasibility of using Flutter-Web for our needs. Therefore, a detailed, accurate POC is crucial.