This is a common misconception I feel. You should drop the perfectionism, but you should do so understanding that it does not mean dropping the quality.
Perfectionism is when you waste time "perfecting" a panel only for it to look the same, similar or possibly even worse. The reason for this is that perfectionism zones in too much on details and forgets about the full picture, or overanalyzes bits and pieces to the point that the work turns out looking stiff.
Dropping the perfectionism means producing more intuitive, more confident looking art at a faster speed. If you learn to do this (which is a skill in and of itself) you will be making better quality work at a faster rate.
Common practices to raise this skill are seen in nude model drawing classes. You can imitate them in your own practice sets if you wish; Basically grab a few references or ask someone to pose for you. Then you give yourself varying amounts of time to draw by that reference.
The time sets should be something like this:
10 seconds
30 seconds
1 minute
5 minutes
(Several hours from multiple angles if you are incorporating sculpting into your anatomy practice, but that is for anatomy learning purposes, not speed and intuition practice.)
This practice will teach your brain and perceptive eye to prioritize the full impression and image, and leave details as a secondary priority. This means that you work faster, more intuitively, create a stronger and more confident expression, and that the details you incorporate will have actual effect and truly pay off.
