u/Embarrassed_Ask_8856

One thing that confuses me is how systems manage to maintain both security and speed when connecting multiple locations. It seems like adding layers of protection would naturally slow things down, but many services still operate very smoothly. What kind of technologies or techniques are used to balance these two factors? Is there some kind of prioritization happening where certain data is handled differently to maintain efficiency?

Also, how do these systems scale when the number of connected locations increases? Does performance drop, or are they designed to handle expansion without major issues?