Your pace isn’t a flaw just because it’s different from the loudest person’s pace.

Speed varies for reasons that are mostly invisible: what else you are carrying, how you are built, what conditions you are working in. The person setting the apparent standard is usually just the one talking about it most, which is not the same as the one doing it best. Their rate is information about them.

Work out what you can sustain and write it down, then plan from that number instead of from the ambient one. When you feel behind, check whose pace you are comparing yourself to and whether you know anything real about their circumstances.