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I have had no performance issues since the September patch.
Running at 4K with no AA and only only enhanced rain from the gameworks section. Everything else on high, I averaged 60 fps with a minimum of 30fps which occurs at the exact moment the test starts.
Memory usage ingame is about 5-5.5GB
my 980ti is running at ~1400 for the entire test.
On a side note I actually really enjoyed the gameplay, there were times I felt the batmobile was overused but the story was good.
There is some occasional drops to the mid 40's if you watch the fps counter, which is likely a flaw in the engine as those same drops only hit the high 70's with the fps capped at 90.
Let's not forget all those lovely gameworks extras are chewing up roughly a third of my frame rates too, I'd wager with those disabled the frames wouldn't budge from the limiter.
Compared to the mess it was, they haven't done a bad job fixing it tbh, we can only speculate at the amount of reworking it's taken to get to this point. Hopefully we'll see mgpu sorted in the near future as that was by far and away the worst part I encountered, negative scaling lumpy mess
