After recently finding the windows performance overlay, I spent some time yesterday just going through all the options to see what impacted the GPU performance the most. I had a lot of things dialed down to try and ensure stable performance. There aren't a lot of frame drop hiccups at this point, but they still exist for me. Especially in certain cinema sequences.
I'm quite sure GPU percentage is an extreme reduction of something profoundly complex, but I started out around 77% GPU getting steady 60fps. Dialing everything to max put me at 96%, and from there I just dialed down one option at a time to see what happened.
Dropping down to medium textures took me down to 51% all on it's own. Changing CPU/GPU particle effects swayed performance the second most making about a 3-4% difference. Everything else made all of maybe a 1% difference, so there just wasn't any reason not to max out everything but textures.
I'm not really sure what call to made vs CPU/GPU particles, but that probably doesn't matter a whole lot unless you are riding a performance line on one side of the fence or the other. It was interesting it made the second most difference in performance, but it was still a pretty low impact on a very modest card (1060).
I ended up at around 55% load at 1080p with all but textures maxed. High textures put me around 77% and the game runs the same so that probably makes sense, but even at 55% there are occasional stutters. It's interesting because the load never seems to waver even in 60fps cinema sequences. Some just can't hit 60fps ever. Raiden has a fatality where he pulls all your limbs off and it stutters when the limbs pop and then runs at 45fps. No amount of down grading settings changes that, and the 45fps continues while you select your continuation options.
SC6 and Tekken never stutter in the slightest. My settings for SC6 use more GPU at 77ish% but produces a more even experience. It's a little unfair to compare the two for a number of reasons, but frame rate stability has been a running theme with MKX, IJ2, and MK11. It's pretty good at this point, but when you see other games do it better it's easier to notice. That said, I have the Switch version and you can see it bog down in the same situations and in far more severe way, and if PS4 allowed 60fps cinema sequences, you'd probably see it bog on a few of them.