Hi!
I’m Vladislav and I’ve been developing games on unity for different platforms for over five years. Some of them get 10+ millions installs. You can see a few in my portfolio: https://www.freelancer.com/u/castigatmores.
I’ve got huge skills and knowledge in developing, game design, publishing (Android, iOS, Steam) and other production related things. So optimization is routine for me.
Let me help you.
I think it will take about 2 days, but I’m asking for 4 in a case of any issues. Will be able to say for sure after profiling your project.
Regards, Vladislav