Is there a way to make this compatiable with prefab elevators?

i have a prefab with 15 floors and the lifts are painfully slow lol

I'm not sure exactly what you mean by prefab elevators. Maybe you mean the static monument elevators, such as the ones seen in train tunnels. The speed of those is adjustable in the config.

i have a custom prefab and theres elevators in there,  but they move really slowly, which config file would i be needed to look for?

StaticElevators

thanks