Yes.
.entry-meta, .entry-footer{display:none}
If using pro version:
https://startupwp.com/topic/customizing-your-theme/
If using free version:
https://startupwp.com/topic/child-theming/
And if you would also like to disable the actual comment area altogether, see:
https://startupwp.com/topic/removing-comments-from-pages-and-posts/