Prototype Centering each page

I am working on a prototype and Figma automatically centers pages in view. My pages are different heights. So for screens that have no scroll they’re centered, which is why it looks like it’s changing view/ heights. It makes it look like the prototype is jumping and changing screen dimensions. All my files have the same width but different heights. How do I get the pages to appear the same height?

If your prototype is not too complex then you can try Demo Station plugin. It align all pages on the top.