Ok time be serious....
Let's start with receiving KK 57 times in 5318 hands, seems perfectly normal to me, your odds are roughly 1%+/- ( that they are KK of course, odds roughly 110 to 1).for example over a sample of 5318 hands played ive seen KK 57 times. out of those 57 times ive won 34 times and lost 23.
Now the win %, 34 times in 57 hands. There are so many variables as to how you played them, your win % of 6X+% is fairly good and in fact lines up perfectly with the odds I suspect.
Not sure what else you wish to know except based on those numbers above you are a statistical average and no sign of anything funny.