High latency

I recently switch to the 500MB last week and started to notice on BO6 my latency is stilling between 20 and sometimes hitting 30+ Iv got a wire running from the hub straight into my PlayStation and still having the same problem. We was on BT and would get single digit latency from time to time but now ins always 20 and above how do I sort this problem out and who would I contact about it.

Any information would help and thank you