If you connect your repeater/access point via ethernet instead of wireless it should be faster yes.
As a wireless repeater it has to use half of its bandwidth of the radio to communicate with the primary router.
You are saying I should buy 50m ethernet wire to connect the repeating router.
I can't do it.
I don't even know if it is repeating. My router call it wan medium type.
Anyway, I want to tell you if I connect other router which Ap routher and the other one is giving wireless internet it will be better.
HOME-ROUTER---wireless--->AP-ROUTER---lan--->ROUTER WITH WIFI