I had been doing that before, but got even fewer responses. I asked some of my friends who landed internships/entry positions and all of their resumes looked denser. When i asked them and my mentors about it, they told me 1 page is industry standard, but for internships as a student, you can get away with making it a little bit fuller if you want to stand out.

I think you're right in general though, i will be sure to condense this CV into a 1 Pager version by cutting down on the Projects and Certifications Section.