Why are copper lines faster than fiber lines in terms of latency ?

is there any wave here going faster than the speed of light ?
Update: this is a rumor i d like to have confirmed. that electrons in a wire transmit a signal faster than the time a beam of light would take to reach the end of the fiber, because electrons do not actually travel through the wire but rather achieve some kind of balance i wouldnt know how to define it correctly... show more this is a rumor i d like to have confirmed.

that electrons in a wire transmit a signal faster than the time a beam of light would take to reach the end of the fiber,

because electrons do not actually travel through the wire but rather achieve some kind of balance i wouldnt know how to define it correctly thts why i ask ^^;;

if someone gets what i mean.
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