Unity optimization

I am looking for a freelancer who is experienced in Unity optimization and can help improve the performance of my Unity 3D project. The current performance is unfortunately poor, so I am hoping to get a significant improvement by having an expert optimize it specifically for PC. I will make sure to provide the Freelancer with all the necessary information and materials for the project, and the expected outcome is a significantly improved performance after the optimization. The freelancer must have experience in Unity game optimization and must be able to produce the desired results.