My most accurate game ever

I'm 1600 rated in lichess and I don't play in chess com but the latest game which I analysed in chess com comes out to be my most accurate game I've ever played. The game was of kings Gambit accepted and since I studied this variation I've known the opening well nd all my opening moves comes out to be book moves so 100% accuracy in opening and the game was of 21 moves in total so I managed to find good moves in middle game too as there was not so many moves