Alright, I know this one is going to get a lot of flak because of how already powerful Kinessa can be.... but I don't think this would be too ground breaking. Just something to help her have more maneuverability so she can pick her shots and keep on the offensive instead of staying in one place.
Have a card that increases the speed of how quickly her scoped shot charges. Nothing too major or ground breaking, just a little boost around... let's say 4-5%
In other words...
[4/8/12/16/20%] increased charge speed while scoped.
or
[5/10/15/20/25%] increased charge speed while scoped.
This way Kinessa would feel more fluid and not like a waiting simulator. I absolutely love her ability to one-shot squishies (without haven) with one well placed headshot, but the waiting kills it for me a lot of the time. Unlike with Strix where I just pop in the head then immediately shoot them again. Even though it takes two shots, it feels more fluid for me.
I don't know, this is just an idea I wanted to circulate to make her feel like less of a boring character (considering how satisfying/rewarding she can be).