FPS performance issues since BFA

[Ellay]

Posted on other thread, making own.

So I've been having a similar issue with Wow and I've been trying to modify my settings to help/alleviate.

I run a 660 ti, I7-3770k, 32 gb ram. I know its dated but it still ranks decently well. I have all my characters on 1 for settings, and I even lower the slaves to craptastic settings to try to squeak out. 60 fps on main/15 on slaves.
My Cpu usage total is only maybe 45%, and my GPU never goes over 40% yet it'll still be super choppy in some situations. Most noticably is going to Boralus and then leaving, the slaves will drop to 1-2 fps until I close out the game completely and re-open, almost as if there is a memory leak. It doesn't happen every time but it's most likely 50%.
The worst thing possible though is adding Discord to all of this, it somehow ties in to every game and gives me excessive lag. Anyone know how to control it's tendrils better?
I've been eyeing a 1060 card to alleviate potentially these issues but I'm concerned if my current card is only using 40% gpu at peak throughput and my cpu is less than 50% that it's something else.
This started happening after BFA pre-release when they forced updated graphics, dx settings and shadows on permanently.

I also use the select all cpu strategy in isboxer,

The end result is if my game runs sluggishly, I'd like it to at least use 100% cpu and 100% gpu and fully max it out.