As a positional player I hate to give up my pieces but sometimes you have no option
pt.lichess.org/VqipaiGg/white#0A sacrifice crowns positional play. Black transferred his knight from the good position f6 to c7 where it does nothing useful.
Generally when a "positional" type player like yourself or myself gives up material there is a serious problem with the opponents play. This case would be just that.
That rook on a8 did a lot to participate so did the knight on c7 and bishey on c8. NOT
Good game. Maybe 10...Nh5 for black rather than Ne8?