If playing slowly and paying attention to the details is boring you, then try playing unbelievably slowly, one note every couple of seconds. While you're doing that, play games with your mind, imagine the score in front of you, name the notes that come next, if you know theory, name the chord progressions that come next. Make it a competition with yourself how slowly you can endure to play. Exaggerate the slowness to the point of grandiose absurdity. Do that for at least one piece once a day and I'll bet you'll break the habit of just rattling through everything at top speed within a week.