Hello,
Yes, I can do Magento 1.9 sites speed optimization, above B or even higher as per your requirement. I have carefully read your project description and requirement. I will provide 5 language store with marketplace module with seller system.
I am professional expert in Websites design, PHP, Magento, Ecommerce, HTML, CSS.
As, I have few questions related to your project. Let's me a quick chat to discuss this so we can move forward in a better way. I am more than 100% sure that this is my yard and I bet you, the quality work I will provide you will be insane.
Let's discuss this further so I can start the work ASAP.
Regards,
Shweta