In management literature, the ability to make quick decisions is seen as a leadership trait. In this fast-paced world, your slowness may frustrate others. They may critically label your slowness as procrastination, because instant gratification is their style. Your slowness may not be a negative trait: you may simply need more time than others for analysis, and development of a sound strategy.
Take the time you need to carefully look at the subject from several perspectives. What is the big picture? What is around, within, and beyond the surface you see? What unseen forces influence the subject? To assist you in decisions, ask others for their impressions. A delayed, longer, or more complete analysis may result in more effective action.
Be patient with yourself. Think a task or problem through, then decide upon the best course of action.