For me it depends on the decision itself. If it is for my tournament life then i will obviously take some time to make my decision, but if it is a case where im risking 1/3 or more of my chips on a decision that isnt +ev then i normally make the decision (which would be a fold in this instance) quite quickly, no need to drag out obvious decisions. A lot of variables would determine how long you take tbh, the player you're up against, how deep you are in the tournament (if it is a tournament), the blinds, your position, stack size, etc etc