I've not played much yet but my initial observation seems to be with low latency mode off I get around 5% performance boost over older drivers, with it on I'm getting around 3% lower average performance compared to older drivers but the games I've tried so far like The Division feel noticeably smoother and more precise to play.
Low latency mode tries to get the GPU processing the latest data as fast as possible basically but sometimes comes at a slight cost to performance or smoothness but acan be beneficial for input latency.
What about the new image sharpening thank you for the info can’t wait to try these .