Theme suggestion for business website

I am looking for a theme for my startup business website.
The landing page should look like a one pager so you can scroll down and get a quick overview of what my business does and what products it sells. But if you click on “learn more” in each section you should be brought to the respective page that can also be accessed through the menu.

This is the first website I build btw.

I do like the look of themes like Acada or Enfold. However, I’ve been told that they are too heavy because they come with tons of features. Because I only have a 5$ hosting package that might slow down my website significantly. A friend suggested to rather go with a free theme.

What do you think? Any suggestions?