Taking longer than the recommended 2 minutes to brush my teeth.

I don't understand how some people stay within the 2 minute time frame to brush their teeth. How do they get them truly clean that way? I am very diligent and detailed when brushing, trying to clean every nook and cranny. It takes me about 5-6 minutes to be done, not even including flossing. In addition, I use an electric toothbrush. I can't operate a manual one properly, it's a big motoric struggle. It would take me double my usual time to brush teeth with such a toothbrush. Do any of you relate? Let me know.