Hi Remcy,
I noticed you started the site some time ago and are now revamping it, so to speak. So good for you on that. The site loading times are a problem as you know. Your appear confident on the videos I saw, but just a little preparation work on camera placement, so we can see your full head and shoulders while you are speaking would make it even better. But the more you do the better you will get.
I shall revisit your site, from time to time, and make more detailed critiques within the comments section of that website, as I feel that is more appropriate for you.