Hey,
The site looks really good – great work.
There’s two issues that I am seeing.
1.) it took quite awhile for your server to respond to my browser’s request for your website – so there is an issue there.
2.) While your images may not be too big – they are everywhere on the first page of your site. I have been on your site for at least 10 minutes and it is still loading images on the front page, because there are so many. This is the biggest issue.
I would try removing the blog feed from your front page or changing the blog setting to only show a summary instead of the whole post. You can change your blog settings to display a summary of the post in Settings>Reading and then find ‘For each article in a feed, show’ and click on ‘Summary’ then Save Changes. https://codex.www.ads-software.com/Settings_Reading_Screen
Your content is awesome so removing the blog feed from the front page won’t harm but will probably help people navigate your site better. I would place a few 2-3 of your favorite images in its place possibly. Add the *short code* you removed from the front page and add it to your ‘Blog’ page. And add the Blog selection to your primary menu in Appearance>Menus.
Good luck!