That's true for all practical purposes, but technically it's incorrect. For a start, statically linked modules can be packed more tightly into sections by the linker, whereas dynamically loaded modules will always have as much as 4kb of slack at the end of theirs.

There are a bunch more differences like this. If it's like userspace, in many cases the dynamically loaded symbols also involve a level of indirection in order to access them since they have no fixed address at link time, which results in a small performance hit.

Modules also include metadata which remains for as long as it is loaded, but I think this is negligible.