No I'm sorry there isn't. The front pages of our blogs showcase content and comments are collapsed on that page. By clicking the post title or the comments link the posts on the front page open on their own page where all comments display.
In a new blog one does not have many posts or comments. In an established blog is the comments did not collapse on the front page it would become a mile long in no time flat. Page loading time is a page ranking factor. We have only seconds before visitors refuse to wait and click out.
The way the comments function is coded into the core of wordpress and your blog is functioning correctly. . So the short answer is your comments are displaying correctly and “no” you cannot change this.