Thanks, that helps to set the expectation. I don't know which part is the bottleneck currently because I don't know how to check that. I was hoping to get by with a few minor upgrades for awhile, but maybe I'll be better off just turning down the resolution and saving for a completely new build.

Current resolution that I play with is: Windowed (Fullscreen) at 1920x1080. I just changed my settings down to "Good"...somehow they had gotten set to Custom, and some of them were considerably higher than what the "Good" defaults put them at. This seems to be making a 10FPS difference under load, so this might be manageable. I may even turn them down to "Fair" and see how that looks.