I like the overall style of the website, but I have 2 main issues with current state:

1) It is so much heavyweight it constantly takes >15 % of my processor and I'm not even interacting with the page. Animations looks nice, but it should be somehow simple and fast.

2) The "main menu" (I mean the top right icon and the overlay info that is shown after clicking on it) is confusing and doesn't make sense for me. 1) Either this page is simple scrollable all-on-single-page style -> then the menu is useless and just duplicates the info that is already on the page and confuses user. Or 2) the website will have more complex structure so some main menu is needed, but in that case it shouldn't be just hamburger icon, but rather make the categories/subsections links directly visible somewhere, not hidden this way.