Does size of rigid body affect performance when colliding w/ geo?

I’m wondering if the size of a rigid body has anything to do w/ how it performs when it collides with objects. I have a very simple rectangle object that’s colliding with some more complex landscape geo and it’s TANKING fps. However, many small rectangles colliding w/ that same landscape geo seems fine.

Just wanted to double check to see if there’s anything I can do anything to prevent this framerate hit.

Thanks!