Does using large libraries inherently make slower code?

Question

I have a psychological tic which makes me reluctant to use large libraries (like GLib or Boost) in lower-level languages like C and C++. In my mind, I think:

Answer 1

"another ball and chain". Really?

Or is it a stable, reliable platform that enables your application in the first place?

Consider that some folks may like a "too big and ... bloated" library because they use it for other projects and really trust it.

Indeed, they may decline to mess with your software specifically because you avoided using the obvious "too big and ... bloated" library.