Make my Online Games much faster at loading up

What needs to be done here is very simple to describe. I have a website with three online games that were made using Unity 3D. Both the website and the games work fine. The website also has a control panel for its editing with plenty of hard disk storage and bandwidth. The problem is that the games can take 30 - 40 seconds to load up on some PCs. After that they are okay. I want this sped up immensely so it is more like 2 - 5 seconds to load up on most PCs. The links to the online games on my website are below. [login to view URL] [login to view URL] [login to view URL] I spoke to my hosting provider and they told me the below, which may or may not be of some help to you in this project. " I have checked with the server nad couldn't find any load spike in the server. Also the response time of the server is fine and all other website is loading with good speed. While investigating the issue further, could find that are some render-blocking JavaScript and CSS code causes a delay in rendering your page. Remove the render-blocking JavaScript with the help of a website developer: [login to view URL] Also please optimize CSS Delivery of the following script: [login to view URL] "