I have sometimes high latency in ESO during peak hours, it goes to 200-999+ ms and keeps changing drastically every few seconds. I don't have that problem in any other games, I always get 70-80ms when I connect to a EU server (I'm from the middle east, so this is normal). I installed WTFast, which is a program that supposed to "smooth out your internet connection by picking the most direct route to your favorite game server" and it actually helps, I get 100-150ms, not ideal but 100% playable. But it's free only for 2 weeks, then I have to pay and I don't want to pay for it, I should get low latency without it. I have this problem for a long time, in the past I had 2 different ISPs and on the 2nd one there was no lag in ESO, but I had to keep only the 1st ISP. I ran some pathpings, but I got around 70-75ms for the destination address (195.122.154.1) with no packet loss in all the tests I ran. Not sure how I can fix it.