firebase - Are Callable Cloud Functions better than HTTP functions?

Question

With the latest Firebase Update callable functions were introduced. My question is whether this new way is faster than the "old" http triggers and if it is more secure.

I have no expertise in this field, but I think the HTTP vs HTTPS might make a difference.

This is interesting to me because if the callable functions are faster, they have that advantage, but their disadvantage lies in the nature of flexibility: They cannot be reached by other sources.

If the callable functions have no advantages in terms of speed or security I do not see a reason to switch it up.

Answer 1

Waitting for answers