I think I'd like to know a little more about this game before I pass final judgement. I like to play and experience all sort of games, so I may have to try this just to see how if feels to play it. I am guessing once you get into the game, it isn't going to feel any different than GTA, Saints Row or Hotline Miami or any other game similar to them.
When they did the update to 8.1 it fixed a few of the flaws that alot of people really had issues with. With the hardware you have, you may actually see a small performance increase by going to 8.1. I made the switch to 8.1 when I picked up an SSD last year and I couldn't be happier.
I've been playing around with a game I found that is currently on Kickstarter called Project Gorgon. The game is being developed by a couple of people who worked on Asheron's Call and Asheron's Call 2. The game definitely doesn't have the triple A look like ArcheAge being an indie game and the gameplay is extremely reminiscent of old school mmo's and I really like it. The game is definitely a gem in the rough still but it sounds like their vision for the game is better than most I have heard lately.
The game is in Alpha and is currently free to play. If their Kickstarter fails which is looks like it will, I would definitely start paying to continue playing this game and see where they take it.