Hello,
I see your page have some issue about interface.
1. When loading data, It does not fullfill window.
2. On the right side, It would be better if it had fixed size (height). Your site will got a good user experience.
3. If your website need to display alot of data, so It'd better if there has a icon for main menu, which will show when user click on it.
It's several information that I see. If We could discuss, I could provide you some more.
Best regards,
Son Dang,