Your best Ethernet cable should be at your end point .
from router I have a AQ Diamond which is very detailed and a Jcat Reference at the end point which has 6% gold ,it is very detailed yet with the slightGold overlay
a very natural detailed balance. When buying a cable connectors too matter.
Telegartner connectors are considered by many the best connectors.
and both of these cables have them which is a plus.