As someone else mentioned, you'll find multiple threads with varying advice on this topic. I'm a fourth-year Psy.D. student at a decent university-based program in a highly competitive, eastern metropolitan area. I went through the process this year and interviewed at 10 sites (out of 15 applications), ultimately matching with my first choice, with what I believe is a relatively average CV. I had zero publications or poster presentations (although two first-author articles were submitted for peer review at the time of applications, and I am presenting at an international conference this summer) and an average number of hours (about 650 intervention, 100 assessment, and 10 integrated batteries).
What I DID have was a range of clinical experience in multiple inpatient and outpatient settings, a LOT of leadership and teaching experience (e.g., teaching two assessment courses, serving as the student rep for my cohort, a peer mentor for 1st-year students, and the clinic assistant for my program's counseling center). I focused my application on weaving these experiences together to present a cohesive narrative surrounding why I was a good fit for each site I applied to. I also received stellar letters of rec. from multiple clinical and research faculty. I also tend to interview well and received generally positive feedback from my interviewers at each site. These elements were FAR more critical, in my experience, than the stats on my CV.
TLDR: Focus on getting the types of training experiences you're most interested in and present yourself as a cohesive applicant with many strengths AND a passion for learning and continuing to grow on internship.