Unless it has a number and percentage on the right nobody has left you a 1 or a 2 star rating. It probably means that several of your buyers left 4s and several 5s which is perfectly all right and will be as good or better than the majority of ebay sellers.

I only ever look at my DSRs once in a blue moon, I use my time to create listings, process and post items and deal with all the rest of the things selling on ebay entails, looking at my feedback and DSRs doesn't make me any money so why would I waste time worrying about something that is outwith my control.

I list as accurately as possible, I post as soon as possible, I package well, I communicate as and when needed and have very good customer service skills, as long as I know I am doing everything right I leave my DSRs to take care of themselves.