Increase opencart website speed

Hello Freelancers This is my opencart website [login to view URL] and this is speed test report from google [login to view URL] As you see we have a poor rating in both mobile and desktop views we want to increase these numbers (you'll have to say in your bid what number can you make us reach, an you'll be paid when we reach it, this should be based on the errors inside the report) Also, there's a problem in loading the search results (Try searching for "3D Printer" and scroll down you'll find that it says loading but doesn't load, To load them I have to go up again and press "Show 15 or 50 or 100") If you fully understand the two issues and sure that you can resolve them please place your bid and make it include some samples of any opencart websites you worked on. Please start your bid with UGE so I can be sure that you read the description and went through the links I'm willing to pay 10$ for search issue and 40$ for speed issue. This project is a test because we are searching for an opencart expert who shall help us build two other opencart websites for our company soon.