I run a 1080ti with 2 monitors if that helps you in anyway… LOL … my 2 cents.
On a mid-range rig of 10700 and 1080 TI I was getting 60-70fps at max 10 settings at 1440p the last TM/SS brawl. Lowest I saw was high 50s but that’s well within gsync range. Problem is actions weren’t registering immediately. No one was flying around but there were people who were unable to hit action buttons during heavy fights.
The client side was fine. People’s machines can more than handle TM/SS with the current build/APIs. It’s the server side that’s a problem.