Really High latency when gaming

I recently just a a hub 5 installed as I had a hub 3 before as I’ve had speeds dropping but also really high latency and lag when gaming, I’m still having the issue with the new hub and I use a cat 8 Ethernet cable which is brand new and a new console, gaming is just unplayable and been going on for months now. I have a WiFi pod but doesn’t make a difference and not sure what to now.