Print quality a little blurry

I needed to print 2000 labels so I decided to try out a small sample of 10 on a roll first. The quality was great on that. Then I went ahead and ordered 2000 on a sheet as it’s a little cheaper. Upon inspection, I noticed how blurry it is compared to the sample roll I got previously. I’m not happy about that. I don’t know if this is a technical issue, or a sheet vs a roll issue. If it’s the latter reason, Stick Mule should have indicated this potential risk. I would have paid the extra $15-$20 for the roll instead, knowing the quality would be better.